3Com MSR 50, MSR 30, MSR 20 manual DFIC-24FXO24FXS

DFIC-24FXO24FXS 227

Figure 279 DFIC-24FXO24FXS conversion cable

Based on the actual needs, the RJ11 connectors of the FXS interface conversion cable can be connected to the cable distribution frame or to the phones directly or after being prolonged. And the RJ11 connectors of the FXO interface cable can be connected to a subscriber’s PBX or to the subscriber line at the Central Office.

Connecting the Interface Step 1: Connect the D50 male connector on one end of the cable to the card.

Cable

Step 2: Connect the RJ11 connectors on the other end of the cable to the following devices:

■Telephones, Faxes or the AT0 loop trunk lines of the telephone switchboard if FXS is used.

■Regular subscriber lines of the telephone switchboard if FXO is used.

c CAUTION: The screws at both sides of the DFIC-24FXO24FXS module interface should be fixed to avoid loss of them.