AT&T 3.0 manual

Customer Support Information

❑If there are no directly terminated trunks, or if the only directly terminated facilities are personal lines, report the number AS5USA-65646-PF-E.

❑The REN (Ringer Equivalency Number) for all three systems is 1.5A.

—For tie line connection, the facility interface code (FIC) is TL31M and the service order code (SOC) is 9.0F.

—For connection to off-premises stations, the FIC is OL13C and the SOC is 9.0F.

—For equipment to be connected to 1.544-Mbps digital service, the FIC is 04DU9-B for D4 framing format or 04DU9-C for extended framing format, and the SOC is 6. OP.

—For equipment to be connected to DID facilities, the FlC is 02RV2-T and the SOC is 9.0F.

—The quantities and USOC numbers of the jacks required.

—For each jack, the sequence in which lines are to be connected, the line types, the FIC, and the REN by position when applicable.

Disconnection. You must also notify your local telephone company if and when this equipment is permanently disconnected from the line(s).

REN. The REN is used to determine the number of devices that may be connected to the telephone line. Excessive RENs on the line may result in the devices not ringing in response to an incoming call. In most, but not all, areas the sum of the RENs should not exceed five (5.0). To be certain of the number of devices that may be connected to the line, as determined by the total RENS, contact the telephone company to determine the maximum REN for the calling area.

A-4Maintenance and Troubleshooting