What card are the touchtone decoders on? 2

[Delmar]

Working on a Partner 2 and every 4th call am not able to break dialtone by dialing. No lines are set as rotory. This problem even affects intercom calls. Seems that it must be a touchtone decoder issue, but I have never heard any reference to decoders on a partner system. Problem affects all stations across all cards.
Thanks

 

[TouchToneTommy]

You're in luck, that it's a Partner II, as there is no procedure to test TTR's on the ACS.

Here is what AT&T send me many years ago:

Each 206 module has 1 touch-tone receiver
Each 200 module has 1 touch-tone receiver
Each 400 module has 2 touch-tone receivers

Touch-tone receivers are counted sequentially. Starting with the first 206 board. For instance, if you have three 206's and then a 400 in your system, your system would have five touch-tone receivers. The first touch-tone receiver would be in the first 206 board. The fourth and fifth touch-tone receivers would be in the 400 module, which is the last module in your system.

After cycling the power on the Partner Switch, the system allocates every other touch-tone receiver, starting with the second touch-tone receiver. Therefore the first touch-tone receiver assigned is the second touch-tone receiver in the system. The next time a touch-tone receiver is requested the fourth touch-tone receiver in the system is assigned.

The troubleshooring procedures are as follows:
1. Ensure that you have an odd number of touch-tone receivers in the system so that all touch-tone receivers will be tested.
2. connect a display set and a T/R set in COMBO: you can use a 267F2 bridging connector to accomplish this.
3. Cycle the power - cold start the entire switch.
4. Select an ICM button at the display
5. Lift the handset of the T/R set, the set is assigned the second TTR (the one on the second 206 module)
6. Dial a sigit (1), the digit will be shown on the display of the TTR is good (intercom dial tone is also removed)
7. Flash the T/R switchhook, when the intercom dial is heard, the set is assigned the fourth TTR, repeat step 5 to test the TTR
8. Repeat step 6 to test all TTRs in the system.



OK, that's a bit convoluted, but it is valid. Once you suspect which module is bad, swapping it out will confirm the diagnosis.

 

[Delmar]

Thanks Tommy,
That's what I was looking for.