CTI Products NCB/EM with External PSTN Modem - Manual (Page 19)

CTI Products, Inc. NCB-EM User Guide
2. Setup and Operation 13
S TEP 4. M ODEM C ONFIGURATION
MultiTech Modem Model MT2834ZDX (Dial-Up)
Configuration of this external dial-up modem is performed automatically by the NCB module. No manual user
intervention is required.
MultiTech Modem Model MT2834L (Leased-Line)
This external leased-line/dial-up modem must be configured before use with the NCB module. Configuration
parameters are stored in the non-volatile memory of the modem and, therefore, only needs to be performed
when first installing (or replacing) the modem. Use the following steps to configure this modem model:
a) Set the DIP switches on the side of the modem as follows:
1: DOWN 5: # 9: DOWN 13: UP
2: UP 6: UP 10: UP 14: UP
3: * 7: DOWN 11: DOWN 15: UP
4: UP 8: DOWN 12: DOWN 16: UP for 2-Wire, or
DOWN for 4-Wire
* Set DOWN normally, UP to connect modems back-to-back with a short cable.
# For a single dedicated phone line, one modem must have switch 5 DOWN, the other modem
must have switch 5 UP.
b) Set NCB module switches as follows:
MODE 1: C BAUD 1: 7 BAUD 2: 0 OPTION B, 1 & 2: UP
c) Connect the modem to the NCB “PORT 1” connector.
d) Power up the NCB unit and the modem (any order).
e) Wait for the “ERR” LED on the front of the NCB unit to stop flashing. When it does, power down the
NCB unit and the modem.
f) Change DIP switch 10 on the modem to DOWN.
g) Reconnect the modem to the desired NCB “PORT 1” (if different from the NCB used for
configuration) and change “MODE 1” to the “D” position.
h) Re-power the NCB unit and modem.