POT Line to Remote Phone

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1 OPX PO Line to Remote Phone FXO In this application the customer uses the specified ADRAN equipment to extend a plain old analog telephone line to a remote location (Off Premise Extension). he customer takes a 2-wire loopstart telephone line from the elco and connects it to the FXO card. he FXO converts the analog voice signal into a binary representation that the 1 can transfer to the remote site. It also takes the ~25mA loop current that indicates the off hook /on hook condition, and the ~100 VAC ring voltage and converts them into a 2 bit binary representation called signal bits. he remote site uses a card and connects it to a plain old phone. he card converts the digital voice back to analog and the signal bits back to DC loop current and AC ring voltage for the phone. In this case the mode should be set to FXO-L and -L. he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. On the FXO, the RX ranges from 8dB, (the softest) to 0dB ( the loudest) and the X ranges from +8dB (softest) to 0dB (loudest). he levels are adjusted on the analog side of the card in respect to the 1. RX adjusts the volume on this side and X adjusts the volume as it is sent to the other side. he card ranges from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. Always confirm the configuration and mapping first. hen check the signal bits in the idle state. No Dial one When the customer goes off hook but they don t get a dial tone, check to see if the X signal bits show off hook. Do the RX bits on the FXO match the X bits? Once the signal bits are confirmed, move on to the voice path (this is where the dial tone rides). et the 1 khz tone to near on the card and listen to the PO for tone. his confirms the talk path of the card. hen remove the tone on the card and set the FXO card s 1 khz tone to far. his will generate a tone on the analog side of the FXO, converts it to digital, transfers it to the card and converts it back to analog for the phone. his confirms the talk path from the FXO all the way across the span to the PO. Finally, connect a PO to the telephone company s line to test for dial tone from the CO. Phone doesn t Ring Do the FXO X bits toggle when a call comes in. Do the RX bits toggle with the FXO X bits? est the card s ring generator by setting the 2w output to ringing (this should ring the phone). If using a "plug on" card, check the ring pins at the front of the cards that connect the "plug on" to the "plug in". Finally, connect PO to the elco line to verify that a ring voltage is coming in.

2 OPX PO tation to Remote Phone FXO In this application, the customer extends a Plain Old elephone (PO) line from the, across a 1 to a remote phone. When a caller dials this assigned extension, the remote phone rings. he customer takes a 2-wire loopstart telephone line from the station side of the and connects it to the FXO card. he FXO converts the analog voice signal into a binary representation that the 1 can transfer to the remote site. It also takes the ~25mA loop current that indicates the off hook/on hook condition, and the ~100 VAC ring voltage and converts them into a 2 bit binary representation called signal bits. he remote site uses the card to connect to a plain old phone. he card converts the digital voice back into analog and the signal bits back to DC loop current and AC ring voltage for the phone. In this case the mode should be set to FXO-L and -L. he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. On the FXO, the RX ranges from 8dB, (the softest) to 0dB ( the loudest) and the X ranges from +8dB (softest) to 0dB (loudest). he levels are adjusted on the analog side of the card in respect to the 1. RX adjusts the volume on this side and X adjusts the volume as it is sent to the other side. he card ranges from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. Always confirm the configuration and mapping first. hen check the signal bits in the idle state. No Dial one When the customer goes off hook at the phone but they don t get a dial tone, check to see if the X signal bits show off hook. Do the RX bits on the FXO match the X bits? Once the signal bits are confirmed, move on to the voice path (this is where the dial tone rides). et the 1 khz tone to near on the card and listen to the PO for tone. his confirms the talk path of the card. hen remove the tone on the card and set the FXO card s 1 khz tone to far. his will generate a tone on the analog side of the FXO, convert it to digital, transfer it to the where it is converted back to analog. his confirms the talk path from the FXO all the way across the span to the PO. Finally, connect a PO to the s to test for dial tone from the. Phone doesn t Ring Do the FXO X bits toggle when a call comes in? Do the RX bits toggle with the FXO X bits? est the card s ring generator by setting the 2w output to ringing (this should ring the phone). If using a "plug on" card, check the ring pins at the front of the cards that connect the "plug on" to the "plug in". Finally, connect PO to the to verify that a ring voltage is coming in.

3 IE runks runk to runk (with ) In this application the customer uses ADRAN cards to tie two es together. his allows the two s to act as one. For example, any station at A can call any station at B using only the extension. Also, a caller at A can take advantage of local CO lines connected to B. his would allow callers in city A to make local calls in city B (and visa versa). Customer connects the card to an analog trunk line on A. A 1 connects sites A and B. he opposite site, B, also has an card connected to an analog trunk line. If 1234 dials 1235, the connects the two stations without the use of external trunks. When 1234 dials 5678, A recognizes it as a remote extension and seizes the 2w analog loop provided by the. he remote immediately rings and the remote trunk (on B) connects. he two s are now connected and A passes the DMF digits over to B. B then routes the call to Under port configuration, the card can be set to one of three modes. However, both sides must match. PLAR his uses the automatic ring down to connect the two s. When one side goes off hook, the opposite site rings and connects automatically. When either of the sides terminate the call by returning to on hook, the opposite side returns the trunk to idle after a designated time out period has expired. andem L andem-l is used much like the PLAR mode. he 2w port is connected to a 2-wire analog L trunk on the. he difference between PLAR and andem is on the digital side of the circuit. With andem, the card communicates to the opposite card via E&M signaling. andem is preferred over PLAR because andem allows the card to signal the remote that a call has dropped. It does this by dropping battery for 500 msecs. andem-g operates like andem-l except it allows the card to connect to a that uses a Ground tart 2-wire trunk. As always, start with the configuration. hen confirm the signal bits on each side in the idle state. Next, confirm the signal bits follow the 2-wire analog state (on hook off hook etc.). he quickest way to troubleshoot the ADRAN equipment and 1 is to replace the es with POs. Going off hook on either side should ring the opposite phone. If this works, the ADRAN and the 1 are okay. Further troubleshooting should be with the s. If this fails, troubleshooting should begin with the ADRAN and elco.

4 IE runks runk to runk (with E&M) E&M E&M In this application the customer uses ADRAN E&M cards to tie two s together. his allows the two s to act as one. For example, any station at A can call any station at B using only the Extension. Also, a caller at A can take advantage of local CO lines connected to B. his would allow callers in city A to make local calls in city B (and visa versa). he E&M card must be connected to an E&M interface on the. Unlike a POs line, E&M does not have a DC offset on the talk path. he talk path is on a set of wires separate from the 48 VDC signaling lead wires. he voice signal is modulated onto the tip and ring when operating in a 2-wire full duplex configuration. In the 4-wire configuration, the voice is transmitted onto the R pair and received on the 1, R1 pair. he signaling (on hook, off hook) is still done with 48 VDC but it rides on the E & M leads. he is an "M lead originate" device and the ADRAN E&M card is an "E lead originate" device. When A wants to place a call, it raises the M lead. he does this by applying 48 VDC to the M lead. Our E&M card sees 48 VDC and converts that 48 VDC into signal bits (X 11 RX 00 ). he remote E&M card sees the 11 bits coming from the other side and converts the signal back to analog by grounding the E lead. his causes current to flow from the to the ADRAN E&M card on the E lead. When B sees that the E lead has gone high, it knows a call is coming in and rings the appropriate phone. When the ringing phone goes off hook, B then signals A by applying 48 VDC to the M lead. Our E&M card sees the M lead now has voltage and transmits 11 back to A. he ADRAN E&M card at site A converts the RX 11 back into an analog state by grounding the E lead. Now current is flowing from A into the ADRAN E&M card A. he originating A has now seen the E lead return high and the connection is complete. he E&M card only has four configuration settings. 1. MODE In this application the mode should be set to E&M(not O) and either 2-wire or 4-wire depending on the E&M interface on the 2. RX LVL LP his adjusts the volume that we hear on this analog side. 17 dbm is the softest and +7 is the loudest. 3. X LVL LP his increases or decreases the volume that the remote side will hear +7 is the softest and 17 is the loudest. 4. Fault Response etting this to seized will cause the line to appear seized (busy) to an incoming caller when the 1 has failed. In troubleshooting keep in mind that the E&M card can be separated into two parts; talk path and signaling. alk path o test the talk path you can connect a butt set to the RX pair (4-wire) or across and R in a 2-wire configuration. et the 1kHz tone to "near" to test the local card. Connecting a butt set to the remote RX or 2w and setting the local card to "far" will test continuity across the and the remote card. ignaling When testing the signaling, you can monitor the analog E&M state by observing the signal bits or E&M status. he signal bits should toggle to represent the analog state of the E&M leads (high or low). A volt meter can be used to confirm whether or not the pins are seeing the 48 VDC. he X signal bits at the local card should arrive at the remote card under RX A and RX B. he E&M card can test the X to RX path by setting the X to 00, 01, 10, or 11 and monitoring the signal bits on the remote card.

5 PLAR Phone to Phone Hotline In this application, the customer used the card in a dedicated point to point hotline (Private Line Automatic Ringdown ). When a caller goes off hook on either end, the opposite side automatically rings. Customer connects a plain L telephone to the card. he remote side also uses a card to connect to a plain L telephone. ide A goes off hook and loop current flows from the card through the phone. he X bits go to 00 and the remote phone rings. When the remote phone goes off hook, loop current flows from the remote through the remote phone and the talk path is established. Each port is mapped to a single D0. Under port config the mode should be set to PLAR (note: andem-l can also be used). he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. he levels are adjusted on the analog side of the card in respect to the 1. RX adjust the volume on this side and X adjust the volume as it is heard by the other side. he card ranges from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. here are two main parts to a PLAR call; ringing and talk path. he ringing and talk path exist locally and remotely. o test the local talk path, set 1kHz to near and listen for the tone on the local PO. o test the ringing of the local phone, set the 2w output to ringing with the PO on hook. o test the talk path from the local port, across the 1 and through the remote port and cable, set 1kHz to far and listen on the remote PO for tone. o test the ringer on the remote phone, set the remote card to ringing with the phone on hook. Also, setting the X bits to 00 will ring the opposite phone which tests the ring path from the local card, across the 1 and through the card into the remote phone. (note: never assume the phone s ringer is on and working)

6 DID Direct Inward Dial DID Phone ystem FXO In this application, the customer uses the FXO and cards to extend a DID line from the telephone company. his connection seems backwards when compared to the OPX line but remember with a DID line, elco acts like the switch (FXO) and the customer supplies the battery (). he customer connects the elco DID line to our card and the DID trunk of the to the FXO card. hese voice lines originate from elco and terminate into the. hey will never originate from the. When a call comes into the elco s switch with your telephone number, the elco closes a switch connected to your cable pair. his causes loop current to flow from the card. he card sends signal bits across the 1 to the FXO card who then closes his switch causing loop current to flow from the DID interface card on the. he then signals the elco (with a wink) that it is ready for the call. he does this by reversing the battery s polarity. When the elco sees this wink, the elco then passes the DNI digits through the talk path into the. he uses the DNI digits to route the call to the appropriate phone. he call can terminate from either end. If the person at the hangs up the loop current (from the to the elco) will stop flowing and elco will return to an idle condition by opening their switch. he call can also be terminated from the elco side if the incoming caller hangs up. When this happens, elco opens their switch and loop current stops flowing. he then returns to an idle condition. With DID, the FXO should be set to DP mode. he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. On the FXO, the RX ranges from 8dB, (the softest) to 0dB (the loudest) and the X ranges from +8dB (softest) to 0dB (loudest). he levels are adjusted on the analog side of the card in respect to the 1. RX adjusts the volume on this side and X adjusts the volume as it is sent to the other side. he card should be set to andem-l, Loop Rev Bat enable, and wink Imm. he LPs range from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. Always confirm the configuration. Next monitor the signal bits to verify the actual analog state is being represented by the signal bits and visa versa. A VOM can be used to monitor the analog state on the cable pair. When idle, the card should put 48 VDC onto the cable pair connected to the elco. When elco closes this switch you should read ~ 8 VDC. Likewise, the should put out 48 VDC to the FXO card. When the FXO card goes from idle to busy, the voltage should drop to ~ 8 VDC. Verification of the talk path can be tested using a butt set to monitor a 1kHz tone coming from the FXO or card.

7 OPX with a 1 to Remote POs DX In this application, the customer extends voice circuits from a 1 port on the to POs at a remote location. he connects to an ADRAN DX card. Across the 1 at the remote site, the customer will use cards to connect to POs. Each phone line leaves the on a single D0. he remote site uses a card to convert the D0 to analog and connect to a plain old phone. he card converts the digital voice back to analog and the signal bits back to DC loop current and AC ring voltage for the phone. he card should be configured to match the voice type. If the is set to act as a FXO L, the should be set to -L. If the is set for E&M signaling, the card should be set to andem-l. he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. he levels are adjusted on the analog side of the card in respect to the 1. RX adjusts the volume on this side and X adjusts the volume as it is sent to the other side. he card ranges from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. Always confirm the configuration and mapping first. On the DX side, a 1 test set is needed to confirm signal bits. he side can be tested with a PO and the test features of the card. On the card, check the signal bits in the idle state. No Dial one When the customer goes off hook but does not get a dial tone, check to see if the signal bits accurately represent the 2-wire analog state (off hook, on hook, ringing). Once the signal bits are confirmed, move on to the voice path (this is where the dial tone rides). et the 1 khz tone to "near" on the card and listen to the PO for tone. his confirms the talk path of the card. Phone doesn t Ring Do the RX bits toggle, indicating ringing? est the card s ring generator by setting the 2w output to "ringing" (this should ring the phone). If using a "plug on" card, check the ring pins at the front of the cards that connect the "plug on" to the "plug in".

8 OPX with Analog E&M to Remote POs E&M In this application a customer extend analog E&M connections from a over a 1 to POs at a remote location. At the site, the customer connects an analog E&M port on the to an ADRAN E&M card. At the remote site, POs are connected to cards. he E&M card must be connected to an E&M interface on the. Unlike a POs line, E&M does not have a DC offset on the talk path. he talk path is on a set of wires separate from the 48 VDC signaling lead wires. he voice signal is modulated onto the tip and ring when operating in a 2-wire full duplex configuration. In the 4-wire configuration, the voice is transmitted onto the R pair and received on the 1, R1 pair. he signaling (on hook, off hook) is still done with 48 VDC but it rides on the E & M leads. he is a "M lead originate" device and the ADRAN E&M card is a n "E lead originate" device. When the wants to place a call, it raises the M lead. he does this by applying 48 VDC to the M lead. Our E&M card sees 48 VDC and converts that 48 VDC into signal bits (X 11 RX 00 ). he remote card sees the 11 bits coming from the other side and converts the signal back to analog loop start and rings the phone. When the phone goes off hook, the card sends 11 back to the E&M card. he ADRAN E&M card at site A converts the RX 11 back into an analog state by grounding the E lead. Now current is flowing from A into the ADRAN E&M card A. he originating A has now seen the E lead return high and the connection is complete. he E&M card only has four configuration settings. 1. MODE In this application the mode should be set to E&M(not O) and either 2-wire or 4-wire depending on the E&M interface on the 2. RX LVL LP his adjust the volume that we hear on this analog side. 17 dbm is the softest and +7 is the loudest. 3. X LVL LP his increases or decreases the volume that the remote side will hear +7 is the softest and 17 is the loudest. 4. Fault Response etting this to seized will cause the line to appear seized (busy) to an incoming caller when the 1 has failed. When troubleshooting keep in mind that the E&M card can be separated into two parts; talk path and signaling. alk Path o test the talk path you can connect a butt set to the RX pair (4-wire) or across and R in a 2-wire configuration. et the 1kHz tone to near to test the local card. Connecting a butt set to the remote 2w loop and setting the local E&M card to far will test continuity across the and the remote card. ignaling When testing the signaling, you can monitor the analog E&M state by observing the signal bits or E&M status. he signal bits should toggle to represent the analog state of the E&M leads (high or low). A volt meter can be used to confirm whether or not the pins are seeing the 48 VDC. he X signal bits at the local card should arrive at the remote card under RX A and RX B. he E&M and cards can test the X to RX path by setting the X to or 11 and monitoring the signal bits on the opposite card.

9 IE Lines tation to runk ELCO FXO In this application, a customer uses ADRAN to tie an analog station, on A, to an analog trunk on B. A uses a station (2-wire analog loop) to connect to the FXO card. he FXO converts the analog voice signal from A into a binary representation that the 1 can transfer to the remote site. It also takes the ~25mA loop current that indicates the off hook/on hook condition, and the ~100 VAC ring voltage and converts them into a 2 bit binary representation called signal bits. he remote site uses a card to connect to a runk (2-wire analog loop) on B. he card converts the digital voice back to analog and the signal bits back to DC loop current and AC ring voltage for B. In this application, the FXO and cards can be set to Ground tart (G) or Loop tart (L). Note, the mode should be uniform throughout the circuit (i.e. A must match the FXO as well as the and B) he RX level and X level can be adjusted to increase or decrease the volume of the caller s voice. On the FXO, the RX ranges from 8dB, (the softest) to 0dB (the loudest) and the X ranges from +8dB (softest) to 0dB (loudest). he levels are adjusted on the analog side of the card in respect to the 1. RX adjusts the volume on this side and X adjusts the volume as it is sent to the other side. he card ranges from 8dB (softest) to 0dB (loudest) on the RX and +3dB (softest) to 5dB (loudest) on the X. Always confirm the configuration and mapping first. hen check the signal bits in the idle state. No Dial one When the customer goes off hook but they don t get a dial tone, check to see if the X signal bits show off hook. Do the RX bits on the FXO match the X bits? Once the signal bits are confirmed, move on to the voice path (this is where the dial tone rides). et the 1 khz tone to near on the card and listen to the PO for tone. his confirms the talk path of the card. hen remove the tone on the card and set the FXO card s 1 khz tone to far. his will generate a tone on the analog side of the FXO, convert it to digital, transfer it to the and convert it back to analog. his confirms the talk path from the FXO all the way across the span to the PO. Next, replace B with a PO and test for dial tone in the same way. Finally, connect a PO to A and test for dial tone from A. Phone doesn t Ring Do the FXO X bits toggle when a call comes in. Do the RX bits toggle with the FXO X bits? est the card s ring generator by replacing B with a PO and setting the 2w output to ringing (this should ring the phone). If using a "plug on" card, check the ring pins at the front of the cards that connect the "plug on" to the "plug in". Finally, connect a PO to A to verify that a ring voltage present and working.

10 DNI Delay elco to U 600 to Fax erver Fax Machines ELCO U 600 FAX erver x 123 x 124 x 125 x 128 x 127 x 126 In this application, the customer uses the DNI delay option to signal an "off hook" condition back to telco after a simulated delay needed to allow the called device time to answer. In this example, the called device will be a Fax erver. he U 600 s network port is connect to the elco s 1 line. he card uses its analog 2-wire ports to connect to (in this example) the fax server. When a call comes in from telco, telco X 11 signal bits to the card (seen as RX 11) to alert the card of an in coming call on that D0. he card then sends ring voltage to the fax server. he fax server responds by answering the call. he card winks back to telco that the server is ready for DNI. At the same time the card winks, it starts counting down the time configured under the DNI delay option. he fax server receives the DNI tones and uses them to route the call to the appropriate fax machine. his procedure takes a few seconds to route and for the fax machine to answer. When the DNI delay time has expired, the card sends an off hook condition (X 11) to the elco for the remainder of the call. From the view of the, the fax machine is on the far side of the fax server. his makes the fax machine s off hook invisible to the card making it impossible for the to know when the fax machine has actually answered. It s for this reason that the card waits x amount of time and then proxies an off hook condition back to elco. In this application, the card will be configured for andem-l, and DNI Delay set to x number of seconds. X is determined by the estimated time it will take for the fax server to receive the DNI, route the call, and the called fax machine to answer. he X and RX LPs can be adjusted to increase or decrease the volume. roubleshooting this application can be done much like a standard telco E&M, to analog loop start, phone line. he card must start by seeing RX 11 bits from elco. he card should then put out AC ring voltage to the 2-wire side. he next step can be tested by going off hook (answering the call) on the 2-wire side. he card should then send a wink back to elco. he wink is ~200 msec long and may be too fast for the front panel s signal bit display to capture. When the card winks back to elco, the DNI tones from telco should be heard by the phone, buttset or other POs line test device. After the previously configured amount of delay, the X bits should go to 11 as long as the POs test device is off hook. his indicates that the elco line and the ADRAN are working properly.

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