Adding an External Modem

This procedure details the installation for the use of a customer supplied modem instead of the internal modem of the 6920.

1. Disconnect the RJ-45 cable (530-3205-01) from the DB-9/RJ-45 Adaptor (530-3205-01) on the Mic #2 serial port of the DSP-1000. The other end of this cable should remain connected to the 'AUX' port of the SPA tray (FIGURE 1).

- FIGURE 1 – TBS

2. Reconnect the RJ-45 cable (530-3205-01) to the 'AUX' port on the interior face of the patch panel. The other end of this cable should remain connected to the 'AUX' port of the SPA tray (FIGURE 2).

- FIGURE 2 – TBS

3. Connect the external modem to the 'AUX' port of the patch panel.

- FIGURE 3 - TBS