Configuration and Installation
6 AXB-DTMF+ DTMF+ Interface
Testing the AXB-DTMF+Follow these steps to test the AXB-DTMF+:
1. Disconnect AXlink power.
2. Remove the cover from the unit housing and set the AUTO ANSWER jumper to AUTO ANS WER
ON then reinstall the cover on the unit housing.
3. Reconnect AXlink power. The status LEDs should blink in sequence from right to left and the
AXlink green LED should be blinking.
4. Place a call to the AXB-DTMF+ from an outside line.
5. The RING LED should light with an incoming ring.
6. The OFF HOOK LINE LED should light after 1 ring.
7. The DTMF RX LED should light when tones are sent from the calling telephone.
8. Check line quality and operation using an extension telephone connected to the PHONE jack.
9. Return the AUTO ANSWER jumper to OFF position, if desired.
Off-hook line and off-hook phone troubleshooting
The off-hook line and off-hook phone LEDs light only if there is a good telephone line connection.
If either the off-hook line or off-hook phone LED fails to light, a faulty telephone line connection is
indicated.
Make sure a proper phone line connection exists to light both off-hook and extension off-hook
LEDs. Test the off-hook line by following these test procedures:
1. Take the AXB-DTMF+ off-hook by issuing the off-hook Send_Command from the central
controller. If there is a good telephone line connection, then the OFF HOOK LINE LED lights.
2. If the OFF HOOK LINE LED fails to light, then there is a bad or faulty telephone line
connection. Check the incoming telephone line and make sure it is working properly. Then,
check the RJ-11 cable and its connection to the AXB-DTMF+.
Test the off-hook phone using the following steps:
1. Take the receiver off the extension telephone. If there is a good telephone line connection, then
the EXTENSION OFF HOOK LED lights.
2. If the OFF HOOK PHONE LED fails to activate, make sure that an extension off-hook
Send_Command has not been issued (you can do a Send_Command extension on-hook to be
sure; see the Operative Send_Commands section on page 7 for details). If this does not
produce results, then there is a faulty telephone line connection. Check the incoming telephone
line and make sure it is working properly. Then, check the RJ-11 cable and its connection to
the AXB-DTMF+. Make sure the RJ-11 cable from the extension telephone is good.
The extension telephone is optional and supplied by the user.