Cisco 1701 Bedienungsanleitung PDF herunterladen (Seite 5)

Cisco Systems, Inc.

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Input level

+1 dB0 to -24 dB0

Data Interface

Data rates

N x 64 kbps (N = 1 through 24); nonchannelized

N x 56 kbps (N = 1 through 24); nonchannelized

Interface connector

RJ-45

System timing

Network and internal

Diagnostics

Loopbacks

Network line loopback; user initiated

Recessed push button for network line loopback; toggle on/off

Network line loopback; telco initiated

Network payload loopback

Local date terminal equipment (DTE) loopback

Remote line and payload loopback (codes: V.54 loop up, and loop down)

Self-test

Self-test activated by user

Test patterns (BERT)

1:2, 1:5, 1:8, 3:24, QRW, All 0s, All 1s, user-programmable 24-bit patterns

Network (T1) alarms

Loss of network signal (red alarm); loss of network frame (blue alarm) (AIS) from network; receive (yellow alarm)

from network [UNCLEAR]

Performance reports and error counters

Cyclic redundancy check (CRC), bipolar violation (BPV), OOF [EXPAND?], errored seconds, burst errored seconds,

severely errored seconds, Ft and Fs framing errors for SF framing, FPS [EXPAND?] framing errors for ESF framing,

24-hour history stored in 15-minute increments

LEDs

CD (data carrier detect)

LP (loopback)

AL (alarm)

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Cisco 1701 Bedienungsanleitung Seite 5