Specifications

TN769 analog line (8 ports)
Issue 6 February 2007 235
DS1 tests include:
● loopback tests at the DS1 circuit pack edge or the 120A (if used),
● bit error rate (BER) loopback tests at the far-end CSU, and
● BER 1-way DS1 facility tests.
Other tests include loopback testing specifically designed to locate DS1 facility faults.
TN769 analog line (8 ports)
Note:
Note: This circuit pack is no longer sold.
The TN769 analog line circuit pack has eight ports, each with tip and ring signal leads. The
TN769 circuit pack supports:
● On-premises or off-premises wiring with either touchtone or rotary dialing and with or
without LED or neon message waiting indicators
● Three ringer loads, such as three telephones with one ringer load each
● Up to four simultaneous ports ringing
● Queue warning-level lights that are associated with the direct department calling (DDC)
feature and uniform call distribution (UCD) feature
● Recorded announcements for intercept treatment
● Dictating machine for the Recorded Telephone Dictation Access feature
● PagePac paging system for the loudspeaker paging feature
● External alerting devices for the Trunk Access from Any Station (TAAS) feature
● Modems
The TN769 circuit pack does not support off-premises message waiting indicators.
The TN769 circuit pack provides secondary lightning protection, and supports µ-Law
companding.
Each carrier with neon message indicators requires the TN769 circuit pack, along with a
TN755B neon power circuit pack to support neon message waiting indicators. Only one
telephone can have an LED or neon message waiting indicator.
Combined conversion of Modem Pooling requires both
● a port on a TN754B circuit pack and
● a port on a TN746B circuit pack or a TN769 analog circuit pack
for each combined resource that is to be supported.