1-Port T1/E1 Mini-Physical Interface Module (Srx-Mp-1T1E1-R) Supported Loopback Diagnostics; Table 21: 1-Port T1/E1 Mini-Pim (Srx-Mp-1T1E1-R) Led States - Juniper SRX550 Hardware Manual

SRX550 High Memory Services Gateway Hardware Guide

1-Port T1/E1 Mini-Physical Interface Module (SRX-MP-1T1E1-R) Supported Loopback Diagnostics

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Table 21: 1-Port T1/E1 Mini-PIM (SRX-MP-1T1E1-R) LED States

LED Color
ALARM Yellow
LOOPBACK Yellow
CD (Carrier Green
Detector)
The 1-Port T1/E1 Mini-Physical Interface Module (Mini-PIM) has the following loopback
diagnostics:
Local, remote, payload
Test patterns (BERT)
All ones
All zeros
Alternating ones and zeros (AA/55)
1:3 or 1-in-4 pattern
1:7 or 1-in-8 pattern
3:24 - 3 bits set in every 24 bits
QRSS20 (Modified PRBS 2^20-1, with 14 zero suppression)
PRBS 2^7-1 - PRBS 2^9-1 (as specified in ITU-T O.153)
PRBS 2^11-1 (as specified in ITU-T O.153)/2047 pattern
PRBS 2^15-1 (as specified in ITU-T O.151/O.153)
PRBS 2^20-1 (as specified in ITU-T O.153)
Programmable word or 32-bit programmable pattern
Network (T1) alarms
LOS, LOF, AIS, YLW
State Description
On Indicates that there is a local or remote
alarm; device has detected a failure.
Off Indicates that there are no alarms or failures.
On Indicates that a loopback or line state is
detected.
Off Indicates that the loopback is not active.
On Indicates that the Mini-PIM link is up.
Off Indicates that carrier detect is not active.
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