Installation manual

15
Figure 4. Installing a Model 3921 Plus Modem
If the modem is to communicate with an installed SDCP, install the modem as described above and perform the
following steps:
1. Press the
Select
key on the SDCP. The cursor appears in the slot selection entry.
2. Press the F1 ( ) or F2 ( ) key until the carrier number you want appears on the LCD.
The carrier number selection has a range of 1 to 8 since a single SDCP can control a configuration of up
to eight carriers. (This is only possible if the SDU is installed.)
3. Press the
key to position the cursor on the slot selection entry.
4. Press the F1 ( ) or F2 ( ) key until the slot number you want appears on the LCD.
5. Press the
Select
key to place the SDCP in direct communication with the selected modem.
The LCD displays the Top-Level menu for the selected modem. In addition, the Front Panel LED on the
modem’s faceplate and the OK LED on the SDCP light.