Instruction manual

FCC NOTIFICATION AND REPAIR INFORMATION
AT&T SYSTEM 25
This telephone equipment is registered with the Federal Communications Commission (FCC) in
accordance with Part 68 of its Rules. In compliance with the Rules, be advised of the following:
MEANS OF CONNECTION
Connection of this telephone equipment to the nationwide telecommunications network shall be
through a standard network interface USOC RJ21X jack. Connection to private line network
channels requires USOC RJ2GX jack for tie lines or USOC RJ21X jack for off-premises station
lines. Connection to T1 facilities requires USOC RJ48X jack. These can be ordered from your
telephone company.
NOTIFICATION TO THE TELEPHONE COMPANY
If the system is to be connected to off-premises stations (OPSs), you must notify the telephone
company of the OPS class of service, OL13C, and the service order code, 9.0F. For R3 systems,
the analog service code is 9.0Y and the digital service order code is 6.0Y.
Upon the request of the telephone company, inform them of the following:
— The Public Switched Network “lines” and the Private “lines” to which you will connect the
telephone equipment.
— The telephone equipment’s “registration number” and “ringer equivalence number” (REN)
from the label on the equipment.
— For private line connections, provide the facility interface code, TL31M for tie lines. You
must also specify the service order code, 9.0F or 9.0Y for R3 systems.
— For digital connections with D4 Framing Format provide the Facility Interface Code 04DU9-
B or for digital connections with Extended Framing Format the interface code is 04DU9-C.
You must also specify the service order code, 6.0Y.
— The quantities and USOC numbers of the jacks required.
— For each jack, provide the sequence in which lines are to be connected; the type lines and
the facility interface code and the ringer equivalence number by position, when applicable.
This telephone equipment should not be used on coin telephone lines. Connection to party line
service is subject to state tariffs.
November 1995