# vim: autoindent tabstop=8 shiftwidth=4 expandtab softtabstop=4 88 db ad888888b, 88 a8P ad88888ba 88 88 ,d88 d88b d8" "88 88 ,88' d8" "8b 88 88 888888 d8'`8b a8P 88 ,88" Y8, 88 88 88 d8' `8b ,d8P" 88,d88' `Y8aaaaa, 88 88 88 d8YaaaaY8b a8P" 8888"88, `"""""8b, 88 88 88 d8""""""""8b a8P' 88P Y8b `8b 88 88 88 d8' `8b d8" 88 "88, Y8a a8P Y8a. .a8P 88 d8' `8b 88888888888 88 Y8b "Y88888P" `"Y8888Y"' ,ad8888ba, ,ad8888ba, 888b 88 888888888888 88888888ba ,ad8888ba, 88 d8"' `"8b d8"' `"8b 8888b 88 88 88 "8b d8"' `"8b 88 d8' d8' `8b 88 `8b 88 88 88 ,8P d8' `8b 88 88 88 88 88 `8b 88 88 88aaaaaa8P' 88 88 88 88 88 88 88 `8b 88 88 88""""88' 88 88 88 Y8, Y8, ,8P 88 `8b 88 88 88 `8b Y8, ,8P 88 Y8a. .a8P Y8a. .a8P 88 `8888 88 88 `8b Y8a. .a8P 88 `"Y8888Y"' `"Y8888Y"' 88 `888 88 88 `8b `"Y8888Y"' 88888888888 ,ad8888ba, db 88888888ba 88888888ba, d8"' `"8b d88b 88 "8b 88 `"8b d8' d8'`8b 88 ,8P 88 `8b 88 d8' `8b 88aaaaaa8P' 88 88 88 d8YaaaaY8b 88""""88' 88 88 Y8, d8""""""""8b 88 `8b 88 8P Y8a. .a8P d8' `8b 88 `8b 88 .a8P `"Y8888Y"' d8' `8b 88 `8b 88888888Y"' ============================================== SERISS CORPORATION - 1A2 KSU CONTROL CARD 2 LINE / 4 EXTENSIONS ============================================== erco@seriss.com - 06/27/2019 - REV G erco@seriss.com - 07/22/2019 - REV G1 If you find problems in this document, contact: erco@seriss.com ____________________________________________________________________ | ::::::: INTERLINK | | | | o o o o A EXT1 EXT2 EXT3 EXT4 | | LINE1 CPU LINE2 ICM : B /| /| /| /| | | STATUS STATUS STATUS STATUS : : || || || || | | : : || || || || | | o CPU2 : : || || || || | | STATUS : : || || || || | | : || || || || | | ___ __ ____ ____ \| \| \| \| | | | | |+-| |oooo| |oooo| | |__|___|____|__|____|____|_____________|____|________________________| Line1+2 12VDC Ring Trigg. Ext Ring (RJ-11) Power Connector Gen Power INITIAL SETUP ============= There is nothing critical about the order of connecting up the board. The order shown below is: extensions, power, telco, ring gen.. but these can actually be connected up in any order. If you're new to 1A2 wiring, and are not sure what the wire colors "Y-S" or "S-Y" refers to, please see the section on "WIRE COLORS" near the bottom of this document. 0. Mount the board or position it safely before starting -------------------------------------------------------- It is important that the board is not lying on anything metal when powered up, to prevent shorting out the board. If you plan to interlink two boards, see the INTERLINK section of this document. Free Standing ------------- If the board is not mounted to a backboard yet, place the board on a non-conducting surface (wood, cardboard, etc) that is free of metal parts (no staples, paperclips, stray screws/nuts/wire clippings, etc). Mounting to a Backboard ----------------------- If mounting the KSU to a backboard, use screws through all mounting holes with standoffs to keep the board elevated off the backboard's surface so air can flow along the back to aid in cooling of components, and to keep it clear of catching stray metal (like wire clippings). . . -->. .<-- 1/4" or more . . . . . XXXXXXX _ XXXXXXX | |___XXXXXXX +------> || |___XXXXXXX | | | XXXXXXX | | | XXXXXXX | | | XXXXXXX | | | XXXXXXX | /| | XXXXXXX | / | | XXXXXXX | KSU | | XXXXXXX | Board | | XXXXXXX | | |___XXXXXXX Mounting Screws -+------> || |___XXXXXXX <-- Backboard |_| / XXXXXXX / / XXXXXXX PC Board _/ / XXXXXXX / Statndoffs _/ Figure A: Mounting KSU card to backboard. Standoffs can be metal, nylon, rubber, etc. If metal standoffs are used, make sure their diameter does not exceed the diameter of the white circles around the mounting holes, to prevent shorting traces on the board. It's recommended ALL screw mounting holes be used, especially the corners and center screw, so that plugging/unplugging the large 50 pin connectors doesn't put mechanical bending stress on the board that can fatigue the solder/traces. 1. CONNECT POWER ---------------- Connect power by plugging in the 12volt power: ____________________________________________________________________ | ::::::: INTERLINK | | | | o o o o A EXT1 EXT2 EXT3 EXT4 | | LINE1 CPU LINE2 ICM : B /| /| /| /| | | STATUS STATUS STATUS STATUS : : || || || || | | : : || || || || | | o CPU2 : : || || || || | | STATUS : : || || || || | | : || || || || | | ___ __ ____ ____ \| \| \| \| | | | | |+-| |oooo| |oooo| | |__|___|____|__|____|____|_____________|____|________________________| Line1+2 12VDC Ring Trigg. Ext Ring (RJ-11) Power Connector Gen Power . /|\ | ...................................................... : Attach 12VDC power here. +12VDC on LEFT terminal, : : negative on RIGHT terminal. Must be 850mA minimum : : or higher. Stock power blocks are 2000mA (2 amp). : :....................................................: With 12V power connected, the CPU1 STATUS led should flash at 1 flash per second, and the CPU2 STATUS led should flash at 2 quick flashes per second. This indicates the CPUs are operating normally. If leds are NOT flashing, something is WRONG - disconnect power immediately, and refer to the TROUBLESHOOTING section at the end of this document. IMPORTANT: DON'T CONNECT 12V POWER WITH POLARITY REVERSED. This board has NO PROECTION against reverse polarity DC power; doing so will blow random components on the board. It is advised to use the 12VDC power supply that comes with the board which is rated 12VDC / 2 Amps. If you use your own DC power supply source, input voltage can safely range from 11.25VDC to 12.75VDC without ill effects. 1 amp is the suggested minimum rating, more if you have more than 4 extensions. 2. CONNECT 1A2 PHONE EXTENSIONS ------------------------------- Connect the phone extensions to the card by connecting the large amphenol connectors. ____________________________________________________________________ | ::::::: INTERLINK | | | | o o o o A EXT1 EXT2 EXT3 EXT4 | | LINE1 CPU LINE2 ICM : B /| /| /| /| | | STATUS STATUS STATUS STATUS : : || || || || | | : : || || || || | | o CPU2 : : || || || || | | STATUS : : || || || || | | : || || || || | | ___ __ ____ ____ \| \| \| \| | | | | |+-| |oooo| |oooo| | |__|___|____|__|____|____|_____________|____|________________________| Line1+2 12VDC Ring Trig Ext . . . . (RJ-11) 1.5A Connector Ring /|\ /|\ /|\ /|\ Gen | | | | .................................... : Attach extensions to the : : large 50 pin Amphenol connectors : :..................................: IMPORTANT: When connecting phones for the first time, VERIFY the phones are internally wired as follows BEFORE connecting them: > Bells on pins 20/45 (Y-S pair) > Buzzers on pins 17/42 (Y-O pair) > Phone networks configured for diode ringing (**) (**) Since this board uses a diode network to program ringing, bell ringing is on only 1/2 of the AC wave. Paraphrasing Ed from Sundance Communications: "For any kind of diode ringing to work, the capacitor between network terminals A and K (inside phone) have to be bypassed. Move the wire on terminal 'K' to terminal 'A' along with the existing wire." The wire he's referring to is usually the actual bell's red wire. The wiring change inside the phone should be as follows: ................................................................................... : : : : BEFORE : AFTER : : ------ : ----- : : ____ : ____ : : / \ : / \ : : | . | : | . | : : | | : | | : : \____/ : \____/ : : __|__|__ RED _ : __|__|__ RED _ : : | |-------------->(_) "K" : | |--------. (_) "K" : : | | _ : | | \ _ : : | BELL | BLK (_) "A" : | BELL | BLK `----->(_) "A" : : | |-----+ | : | |-----+ | : : |________| | | : |________| | | : : | | : | | : : | | : | | : : O O : O O : : / / : / / : : Y/S S/Y : Y/S S/Y : : (45) (20) : (45) (20) : : : : : PHONE TERMINAL BLOCK : PHONE TERMINAL BLOCK : : : : :.......................................:.........................................: Figure B. The diode ringing in-phone wiring change needed for bells. 3. ATTACH PHONE LINES --------------------- Connect the card to your telephone service. The phone source can be VoIP, XLink BT, or other "plain old telephone" compatible source. ____________________________________________________________________ | ::::::: INTERLINK | | | | o o o o A EXT1 EXT2 EXT3 EXT4 | | LINE1 CPU LINE2 ICM : B /| /| /| /| | | STATUS STATUS STATUS STATUS : : || || || || | | : : || || || || | | o CPU2 : : || || || || | | STATUS : : || || || || | | : || || || || | | ___ __ ____ ____ \| \| \| \| | | | | |+-| |oooo| |oooo| | |__|___|____|__|____|____|_____________|____|________________________| Line1+2 12VDC Ring Trig Ring (RJ-11) Input Connector Gen . Power /|\ | Attach to VoIP, XLink, etc. NOTE: Xtreme Technologies "Xlink BT" and "XLink BTTN" are Bluetooth Gateway devices that can interface cell phones to PTSN output over BlueTooth. It works fine to use that device as the PTSN source, so that your 1A2 phones can work with your cellphone, both for receiving and originating calls. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * WARNING: This card is NOT approved by the FCC for use directly with analog PSTN/POTS lines ("Public Switched Telephone Networks", "Plain Old Telephone Service") Legally it can only be attached to phone systems that use an interface of some kind, like VoIP or like the XLink described above. While this board IS designed to handle old analog POTS lines, THE RESPONSIBILITY IS YOURS whether to connect it without FCC approval. If you do, it is assumed you are a hobbiest or EE technician who understands the implications. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 4. ATTACHING A RING GENERATOR (IF YOU HAVE ONE) ----------------------------------------------- This step is optional. SKIP THIS STEP, if: > You don't have an external ring generator > You intend to use "BUZZ RINGING" instead, or you have your own external ringer and don't want the 1A2 phones themselves to ring. To configure a ring generator with the board, you can attach a 105VAC 20Hz-30Hz ring generator to enable bell ringing in the 1A2 phones on the Y/S wire pair. There are several options for supplying a ring generator: * PowerDSINE 12v ring generator 70VAC/20Hz (can ring 3 or 4 phones using board's own 12v supply) * Western Electric 118A Ring generator from an old 1A2 KSU * VIKING PS-48-RGA (supplies 90VAC 20Hz at 10REN, can ring up to 30 phones) * Other commercially available telephone "Ring Generator" or "Frequency Generator" There are at least three ways to connect an external ring generator, depending on the type: 4.1 For an old telco ring generator (like the WECO 118A or VIKING), you can wire the two Ring AC wires to the RIGHT HAND TWO TERMINALS (labelled "105 VAC/20HZ IN") on the 4 pin EXT RING GEN connector: EXT RING GEN 12V RING 105 VAC OUT 20HZ IN __|__ __|__ / \ / \ + - ~ ~ _ _ _____________________________________________________ _ _ | O O O O | |_______________| x x . . /|\ /|\ | | | | | | ------------ AC POWER | 118A | ____ | RING | | |__ | GENERATOR |-----| |__ |____________| |____| 4.2 For the PowerDSINE 12VDC ring generator, this board provides a 6 pin header at JP5 for directly connecting this device. The SIP header is located to the right of the "EXT RING GEN" connector, under the large EXT1 connector, and is labled "POWERDSINE RING GEN" and "JP5": ____________________________________________________________________ | | | EXT1 EXT2 EXT3 EXT4 | | /| /| /| /| | | || || || || | | || || || || | | || || || || | | || || || || | | || || || || | | 8 \| \| \| \| | | ___ __ ____ ____ 8 | | | | |+-| |oooo| |oooo| 8 | |__|___|____|__|___|____|_____________|____|__.______________________| Line1+2 12VDC Ring Trigger Ring /|\ (RJ-11) Input Connector Gen | Power | | Location of PowerDSINE connector "JP5" The PowerDSINE's 6 pin connector plug should be inserted into the JP5 header as follows. Note the PowerDSINE's YELLOW wire should be at the BOTTOM. JP5 BLU |O| <---------------------------. WHT |O| <----------------------. | RED |O| <-----------------. | | BLK |O| <------------. | | | x |O| | | | | YEL |O| <--. | | | | | | | | | YEL BLK RED WHT BLU | | | | | __|_________|____|____|____|__ | | | | | | | | | PowerDSINE | | PCR-SIN03V12F20-C | | (or similar) | | | | | | | |______________________________| Figure C. Wiring the PowerDSINE via 6 pin plug to KSU board. Avoid connecting the plug in reverse, as the plug does not prevent one from doing so. 4.3 If you have a PowerDSINE ring generator with the connector cut off, or if you have a Cambridge Electronics 12V ring generator, you can wire it directly to the EXT RING GEN screw terminals as follows, leaving JP5 unconnected: EXT RING GEN (+) (-) (~) (~) _ _ ______________________________________________ _ _ | O O O O | |_______________| | | | | | | | | RED BLK WHT BLU | | | | | | | | _____|___|___|___|_____ | | | YEL|------ (tape off, do not connect) | | | PowerDSINE | | PCR-SIN03V12F20-C | | | | | |_______________________| Figure D. Wiring the PowerDSINE to screw terminals. For the PowerDSINE, RED/BLK wires are +12/GND outputs to power the device from the board, and WHT/BLU wires are AC ring outputs from the device to the board. Leave the YEL wire ("inhibit") unconnected. For the Cambridge Electronics device, wire the +12/GND inputs to the left hand screws on the EXT RING GEN connector, and wire the AC output to the right hand screws. If you have trouble getting one or more extensions to ring, check the TROUBLESHOOTING section below. 5. SET THE DIP SWITCHES FOR RINGING ----------------------------------- There are two sets of 8 dip switches at the bottom of the board, SW1 (left) and SW2 (right). BUZZ RINGING -- SW1 ------------------- If you don't have a ring generator, this board can still "ring" the phones using the phone's built-in buzzers. Assuming your buzzers are wired to the 17/42 wire pair in each phone (Yel/Orn pair), TURN ON the appropriate DIP switches under the "BUZZ CALL" section (SW1). The 12VDC supply will handle buzzing the buzzers during ringing. BELL RINGING -- SW2 ------------------- If you have a ring generator attached (step #4) and want the phone extensions to ring, turn on the appropriate DIP switches under the "BELL CALL" section (SW2). If you don't want the phones to buzz or ring during incoming calls, such as if you have your own ringing system (bell boxes, etc), then you can turn off /all/ the DIP switches for SW1 and SW2, and leave any ring generator connection unconnected. Note that for each switch turned on, that enables ringing for a particular line to a particular extension. The first two switches manage Ext 1, the second two switches manage Ext #2, etc. Here's a full breakdown: Switch #1: ON for ringing Line #1 on Extension #1 Switch #2: ON for ringing Line #2 on Extension #1 Switch #1: ON for ringing Line #1 on Extension #2 Switch #2: ON for ringing Line #2 on Extension #2 Switch #1: ON for ringing Line #1 on Extension #3 Switch #2: ON for ringing Line #2 on Extension #3 Switch #1: ON for ringing Line #1 on Extension #4 Switch #2: ON for ringing Line #2 on Extension #4 This switch arrangement is the same for both SW1 (Buzz Call) and SW2 (Bell Call). TESTING YOUR SETUP FOR THE FIRST TIME ===================================== With the above "Setup" steps completed and power applied, you should now be able to test the phones. Try these tests, in order: Intercom Test ------------- o Pick up the handset on a phone extension, and press the RIGHT-most line button to use the intercom on Line #5. o The lamp for that line should light on all the extensions. o Try dialing "1". It should buzz the phone plugged into EXT1 on the card. Dial "2" to buzz the EXT2 phone, etc. o While you're using the intercom line, have someone else pickup the same line on a different extension. You should both be able to talk to each other clearly over the intercom line. Call Test --------- o Try calling Line #1's phone number from a cell phone, or another line. If configured, the ringers should ring, and the Line #1 lamp should flash at a 1 second rate. (See the TROUBLESHOOTING section for problems) o Answer the call by selecting Line #1 on the phone, and picking up the handset. The lamp should stop blinking and stay on steady. o Try putting the call on hold by pressing the red HOLD button. The Line #1 lamp should flash quickly, indicating the call is now on HOLD. You can now hangup and the call will remain on HOLD until you, or someone at another extension picks up the call. If you don't have a live phone network configured, you can force ringing using the "Ring Trigger Connector" by shorting the two left terminals to ring line #1, or the right two terminals to ring line #2: Ring Trigger Connector Line 1 Line 2 Ring Ring _____ _____ / \ / \ _ _ _____________________________________________________ _ _ | O O O O | |________________| . . /|\ /|\ | | <-- jumper or doorbell switch |___| to ring line #1 To ring Line #1, connect left two terminals on Ring Trigger Connector together briefly with a wire jumper or doorbell type switch. To ring Line #2, do the same for the right two terminals. This is useful for demos, where you want to demonstrate ringing with just power, but no phone line. If you have trouble getting ringing to work, see the TROUBLESHOOTING section below entitled "No Ringing". USING YOUR 1A2 MULTILINE PHONE SYSTEM ------------------------------------- Each multiline phone has "line select" buttons to let you pick which phone line you can use. HOLD ---- From left-to-right, the first button is the red HOLD button, which lets you put calls on Hold. LINE BUTTONS 1-5 ---------------- Next to the red button are the line buttons; the first being Line #1, Line #2, and so on, the last line being Line #5, which is the Intercom Line on this board, described below. Each phone also contains a bell ringer and a buzzer. Depending on how your system is set up, typically the phones "ring" when there's an incoming call, and "buzz" when someone wants you to pickup the intercom line to talk. (See "USING THE INTERCOM" below) TO MAKE A CALL -------------- To make a call, push an available line button (that is not already lit). Choose the line button BEFORE picking up the handset, so you don't accidentally pick up a used line. Now lift the handset. The line's button should light up on all extenions, indicating you're using the line. You should hear dial tone. Dial your call normally, and hang up when you're done. When you hang up, the line's light will go out on all phones, indicating the line is available for new calls. PUTTING CALLS ON HOLD --------------------- You can put an active call on hold by pressing and releasing the red HOLD button. Once on hold, the line's lamp should "wink" at a fast rate, indicating the call is on hold. You can then hang up the phone, and the call will remain on hold. Any extension can then pick up the winking line to return from hold and continue the call. If the remote caller hangs up while they are on hold, the light will go out, hold will be released, and the line will be free for use again. INCOMING CALLS --------------- When a call comes in, the extensions programmed to ring should ring, and the lamp for that line should flash slowly on all extensions, indicating which line is ringing. Phone extensions should either ring or buzz, depending on how the phones are programmed to ring. (See RING PROGRAMMING under "Setup"). USING THE INTERCOM ------------------ The intercom is a way for people in the office to "inter-communicate", such as if a receptionist wants to notify someone at another extension there's a call for them, or if one person wants to briefly talk to another. To use the intercom, push the Line #5 button, and dial the number of the extension you want to talk to. Pushing "1" on the dial pad will buzz the buzzer for that extension. If a person is available at that extension, they should pick up the intercom line and talk to you. If your phone buzzes, and the intercom line is lit, it means someone wants to talk to you, so pick up that line to talk to them. Since phones buzz whenever you push the extension's dial button, people can pre-arrange "codes" for buzzing, for instance two buzzes means the call on hold is for you, three buzzes means someone is here to see you, etc. PHONE SYSTEM ACCESSORIES ------------------------ ORDERING PHONES --------------- To order more phones, check Ebay, Amazon, or other surplus sources for 1a2 multiline phones. AT&T 1A2 models 565, 2564, 2565, and 2830 all have been tested to work with this board. Other models may work as well; check the Bell System Practices (BSP) wiring diagrams to make sure. ORDERING EXTENSION CABLES ------------------------- Extension cables for 1a2 phones are available in a large variety of lengths, from short 5 foot extensions to long 100 foot cables or more. Practically, it's best to purchase several 25' cables than one long cable, as they can be chained together easily if need be to attain longer lengths for flexibility. Extension cables need male connectors on one end, and female on the other; male end connects to the control card, female to the phone's own cable. These cables tend not to be cheap, as they have many conductors and the connectors are industrial quality. Prices vary between $1.00 and $2.00 per foot.. so a 25' cable might be as much as $40. (2018 prices). There are many sources for these cables, used or new, including ebay and Amazon. Search terminology for this cables vary: o RJ21 telco cable o Amphenol telco cable o Cat3 25 pair telco cable o Cat3 50 conductor telco cable o 26AWG UTP Telco 25PR You can use punch blocks with amphenol connectors to punch down cable wiring yourself. The cable can be multiple runs of 8 conductor Cat3, Cat5, or other telecom compatible UTP (twisted pair) cable. Cable terminology: "RJ21" refers to the 50 pin amphenol connectors. "Cat3" refers to the twisted pair rating for voice communications, where the pairs of wire are twisted around each other in a specific way to prevent electrical noise from getting into the voice circuit over long runs of wire. I believe higher category numbers, such as Cat5, Cat6, etc. should also be OK for old 1a2 wiring, but check around for verification. "UTP" stands for "Unshielded Twisted Pair", which is typical of telephone cables for noise reduction. "25PR" means "25 pairs" of wire inside the cable, or 50 conductors total. "AMP" or "Amphenol" refers to the connector ends. M/F, F/M, F/F, M/M refer to the connector types at either end of the cable. You only want M/F or F/M (they're the same thing): o M/F or F/M refer to Male/Female connector ends o F/F refers to Female/Female connector ends (you DON'T want these) o M/M refers to Male/Male connector ends (you DON'T want these) Be sure to get Male/Female ("M/F" or "F/M") connector ends on your extension cables. Conductors can be solid or stranded; typically stranded is more flexible, as solid core wire is "stiff". RING GENERATORS --------------- An external ring generator is required to offer the option of ringing the bells in the 1a2 phones. Note bell ringing is not required: phones can still be "rung" using the "BUZZ CALL" option, which if configured will "ring" the phones using the 1a2 phone's built in buzzers. Since this board uses a 12VDC supply, the "Power DSine" PCR-SIN03V12F20-C 12 volt ring generator works well. While no longer manufactured, it's still only about $20.00 on Amazon and Ebay. During ringing of 4 lines, it seems to use about 500mA (0.5A), so make sure your 12vdc power supply can supply at least 1.5A, as the rest of the card uses less than 1 amp under full load of 4 extensions + 2 lines. Another manufacturer is Cambridge Electronics, which sells a similar 12volt ring generator called the "Black Magic". Or, you can use any of the old telco ring generators that provide ~70-105 VAC, 20-30Hz ring voltage like the 118A. INTERLINKING TWO BOARDS - FOUR LINES / 8 EXTENSIONS --------------------------------------------------- If you have two REVISION F1 boards, you can connect them together with a 30 pin ribbon cable to create a single phone system with 4 CO lines and up to 8 extensions that all can be individually buzzed on the intercom line (by dialing 1 through 8). For info on how to configure two boards with the INTERLINK connector, refer to this page which includes diagrams and descriptions: http://seriss.com/1a2-ksu/rev-f1/data/1a2-pic-IRF-rotary-interlink-REV-F1-0015.png In short, you connect the two boards together by their INTERLINK connector using a 30 pin ribbon cable, pin #1 <-> pin #1, and power the boards either with separate power adaptors, or one adapter (of suitable amperage, 1.5A or higher) wired in parallel to both boards. (See diagram) Configure one board as the "PRIMARY"; that board's telco inputs will appear as LINE 1 and LINE 2 on the extensions. Configure the other board as the "SECONDARY"; that board's telco inputs will appear as LINE 3 and LINE 4 on the extensions. The PRIMARY board's intercom circuit will manage the intercom line for all 8 possible extensions. To configure the PRIMARY board, make sure all the jumper blocks are all installed on the PRIMARY jumper (JP3), and none on the SECONDARY (JP4). Plug the CO lines that should be LINE 1 + 2 into this board. To configure the SECONDARY board, make sure all jumper blocks are installed on the SECONDARY jumper (JP4), and none on the PRIMARY jumper (JP3). Plug the CO lines that should appear as LINE 3 + 4 into this board. Plug up to 8 extensions into the two board's EXT# connectors. When someone picks up the intercom line, dialing 1-4 will buzz the extensions on the PRIMARY board, EXT 1-4 respectively. And dialing 5-8 will buzz the extensions on the SECONDARY board, EXT 1-4 respectively. Note that connectors EXT 1/2/3/4 on the SECONDARY board will really be EXT 5/6/7/8, so you may want to relabel the connectors on the SECONDARY board. TROUBLESHOOTING --------------- This section should help you solve the various problems you can have during setup, or when things go wrong. Email erco@seriss.com if you encounter problems not defined here, esp. if you've found a solution and think others would benefit from it. * PROBLEM: Can't dial with Touch-Tone. ------------------------------------ A common problem is TouchTone dialing won't work to dial out on Line #1 or Line #2; pushing buttons generates no tones, or very low volume tones, but dialing on the intercom works fine. Things to check: * Check the telco line polarity. Many of the old Touch-Tone dial pads are sensitive to line polarity, so be sure it's right. If necessary, flop the wires at your jack. Beware some female/female RJ-11 adaptors and/or RJ-11 cables are wired to swap Tip/Ring. So even though the jack may be wired correctly, the wire or adapters between the jack and KSU might be causing the swap problem. If Tip/Ring are swapped, these TouchTone pads either won't dial at all, or will put out very low volume tones. * PROBLEM: Can't use the Rotary dial to dial extensions ----------------------------------------------------- Dialing of extensions for buzzing on the intercom line should work on REV F boards for both Rotary and Touch-Tone. Older boards (REV E, REV D..) support Touch-Tone dialing, and don't support rotary to buzz extensions. If you can't use rotary to dial phone numbers over the CO lines (Line 1-4), your telco phone service or interface device (XLink) may not support rotary dialing. * PROBLEM: Line #1 works, but Line #2 does not -------------------------------------------- You've confirmed your jack has an active Line #1 and Line #2, but Line #2 doesn't work when connected to the KSU. Things to check: * Check the telephone cable you have connected between the jack and the KSU, and verify it's a 4 conductor wire, and not just 2. Some phone cables only have 2 conductors, the red/grn pair (line #1), and omit the yel/blk pair (line #2), which would cause this problem. Closely look at the RJ-11 connectors on your cable; if you only see red/grn and don't see yel/blk, replace the cable with a 4 conductor cable instead. * PROBLEM: Picking up a line lights lamps but gives no dialtone ------------------------------------------------------------- Things to check: Make sure the 50 pin connectors between the KSU board and the extensions are fully seated, and not partially connected. It's often easy to have one side of the connector or the other popped up, not making a full connection. * PROBLEM: Lamps don't light when picking up a line ------------------------------------------------- Things to check: > Verify the telephone line connection. If there's no voltage on the telco connection, the line sensing won't activate and thus the lamps won't light. > Make sure the 50 pin connectors between the KSU board and the extensions are fully seated, and not partially connected. > Verify the CPU STATUS light is blinking. If it's not, then: a) Pickup the intercom line on an extension and leave the line offhook. (This will cause the on board capacitor to drain throught he intercom). b) Pull power from the board and wait 10 seconds before plugging the board back in again. c) The CPU STATUS light should be blinking. If it's not, the board may need servicing. * PROBLEM: No ringing. -------------------- One or all extensions aren't ringing with their bells during incoming calls, or when using the RING TRIGGER CONNECTOR (as described in the "CALL TEST" section above). Things to check: * Verify bells of EACH 1A2 extension phone are attached to the Yellow-Slate wire pair (pins 20/45). * Make sure the 1A2 connectors are all pressed down and seated fully. A half-seated connector can cause lack of ringing. * Make sure the "BELL CALL" DIP switches (SW2) are set to "on" for the lines/extensions you want to ring during incoming calls. * Make sure the external ring generator is attached correctly and verify AC ring voltage is present during the ring cycle. An external ring generator must be attached to the card for the extensions to ring by their bells. If a POWERDSINE is attached to JP5, verify it's not partially seated on the pins, and is not plugged in reverse. When positioned correctly, the BLUE + WHITE wires will be to the RIGHT, and the YELLOW wire to the LEFT: POWERDSINE RING GEN _ _ _ _ _ _ (_) (_) (_) (_) (_) (_) JP5 | x | | | | YEL BLK RED WHT BLU Refer to "Figure C" and "Figure D" near the top of this document for more info. * For bell ringing to work properly with the diode oriented ring circuit for this board, verify all the 1A2 phones have the following one wire modification. Paraphrasing Ed from Sundance Communications: "For any kind of diode ringing to work, the capacitor between network terminals A and K (inside phone) have to be bypassed. Move the wire on terminal 'K' to terminal 'A' along with the existing wire." The wire he's referring to is usually the actual bell's red wire. Refer to "Figure B" (near the top of this document) for more info. * 1A2 phones typically have ringers with a single bell + clapper. These ringers are sensitive to polarity when mixed with a diode ring circuit. If the ringer is not ringing or barely ringing/humming, try switching the two wires inside the phone between the bell and the hybrid network to see if the bell's polarity is the problem. > Note that the 12V output on the "RING GEN POWER" connector only outputs 12V during actual ringing. This keeps the power off for the ring generator when the phones aren't ringing. To test ringing without a PTSN network, see "CALL TEST" above, using the RING TRIGGER CONNECTOR to easily trigger ringing. * PROBLEM: Buzz-ringing not working. ---------------------------------- This card features "buzz ringing", where the buzzers buzz in place of bell ringing during incoming calls. This is useful if you don't have a ring generator. Things to check: * Make sure the buzzers are all wired to pins 17/42 (Y-O pair). * Make sure the 1A2 connectors are all pressed down and seated fully. A half-seated connector can prevent the buzzers from working, while other features work fine. * Make sure the "BUZZ CALL" DIP switches (SW1) are set to "on" for the lines/extensions you want to buzz during incoming calls. * PROBLEM: CPU LED NOT FLASHING Things to check: > Verify the power supply voltage being fed to the board: Put a meter across the two "12V INPUT" terminal screws and verify +12 volts DC is being fed to the board, positive on the left screw, negative on the right. Voltage can range 11.5V to 12.75v, but closer to 12 is best. > Ensure the power is true DC, and not "lumpy DC"; put a scope on the terminal screws to verify DC and not AC voltage. * If 12V is coming into the board, check the 7805 (Q3) near the power connector, and verify 5V is between pins 2 and 3: 7805 ----------- | ( ) | |-----------| | | | 7 8 0 5 | | | | | |___________| | | | Q3 | | | | | | 1 2 3 1: +12VDC input 2: Ground 3: +5VDC output Using a volt meter, keep the black (negative) lead on pin 2 during the following: touch the red lead to pin 1 should show +12VDC. Moving the red lead to pin 3 should show +5VDC. * Check the temperature of Q3 (the 7805 at the lower left of the board, near power connector). If it gets warm or hot quickly after power is connected, SOMETHING MIGHT BE SHORTED OUT - REMOVE POWER QUICKLY. First let it cool, then unplug all connectors, and then plug in JUST the power connector. If that corrects the problem, plug things back in one at a time until the culprit is determined. Also: check for any stray metal parts touching either the back of the board (stray screws, metal dust), or metal bits lying across any of the components on the board that might cause a short. Keep in mind stray metal/liquids lying across components may have permanently damaged the board to the point where components are blown, and may need to be swapped out to properly repair the board. WIRE COLORS ----------- Bell System Practices wire color codes are used throughout this document, e.g. Y-S and Y-O. The color codes are: R - Red G - Green BR - Brown W - White O - Orange BL - Blue BK - Black Y - Yellow V - Violet S - Slate In telephone wiring, CAT-3 UTP cable (Category 3, "Unshielded Twisted Pair") is used to ensure long runs of signals have the best noise cancellation, such that each voice circuit is on its own pair of wires that are physically twisted together. Most 1A2 phones have 25 pair (50 conductor) CAT-3 UTP cables. Each pair of wires twisted together share the same colors; The "Y-S pair" (yellow-slate) consists of two wires: Y-S -- A yellow wire with a slate (gray) stripe S-Y -- A slate wire with a yellow stripe Mostly single letters are used, but where confusion might arise, two letters are used (like BR for brown, BK for black, BL for blue). To avoid confusion with green (G), gray wires are always referred to as "slate" (S). When referring to a *single wire*, the first of the two colors is the primary color, and the second is the stripe color. So Y-S is a mostly yellow wire with a slate stripe. When referring to *wire pairs*, the first letter is the primary color group. In a 25 pair CAT3 UTP cable, wire pairs are broken into 5 color groups of 5 pairs each: __ White group - 5 pairs (W-BL, W-O, W-G, W-BR, W-S) | Red group - 5 pairs (R-BL, R-O, R-G, R-BR, R-S) | Black group - 5 pairs (BK-BL, BK-O, BK-G, BK-BR, BK-S) |-- 25 pairs total Yellow group - 5 pairs (Y-BL, Y-O, Y-G, Y-BR, Y-S) | Violet group - 5 pairs (V-BL, V-O, V-G, V-BR, V-S) __| So when referring to the pair of wires that are Y-S and S-Y, refer to the pair as "the Y-S pair" (and not the S-Y pair), because the primary color for the group that pair is in is yellow. In this document, the Y-S and Y-O pair are referenced a lot, because the Y-S pair is used for the bells, and the Y-O pair is used for the buzzers. * * * EDITING: WORK IN PROGRESS * * *