
117345-B Rev. 00
8-1
Chapter 8
Configuring FT1 Services
This chapter describes the line services for fractional T1 (FT1) circuits on a Bay
Networks router. It contains the following sections:
Overview of FT1 Services
Bay Networks supports FT1 circuits on ARN, AN and ANH routers.
FT1 interfaces provide high-density access to a digital access and crossconnect
system (DACS).
An FT1 interface can transmit or receive up to 24 DS0 channels per DS1 frame
over leased point-to-point links, with a line rate between 64Kb/s and 1.536Mb/s in
64Kb increments.
All FT1 modules include an integrated DSU/CSU for direct connection to a T1
network. The interfaces provide integrated support for loopback testing and bit
error rate test (BERT) line testing.
Section Page
Overview of FT1 Services
8-1
Configuring an FT1 Port 8-2
Configuring a Non-PRI Logical Line 8-12
Testing FT1 Lines 8-22
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