AT&T System 25 - Manual (Page 5)

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 or RJ48C 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. OF. For R3 systems, the Analog service order code is 9.0Y, 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.
— 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.
Customer instructions will advise the customer to provide the telephone
company with the registration number (either -MF or -KF, depending on
the application of the system) and the ringer equivalency number (REN)
from the label on the equipment. In addition, customer will be advised
c