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).

  1. 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).

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