Juniper Networks J2320 사용자 설명서
Figure 33: E3 PIM
The T3 and E3 PIMs provide the following key features:
■
Onboard network processor
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Integrated DSU—Eliminates the need for a separate external device
■
Subrate and scrambling options with support for major DSU vendors
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Independent internal and external clocking system
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Loopback (payload–supported only on T3 PIM, local, and remote), bit error rate
test (BERT), and T3 far-end alarm and control (FEAC) diagnostics
test (BERT), and T3 far-end alarm and control (FEAC) diagnostics
For pinouts of cable connectors for T3 and E3 PIMs, see “E3 and T3 BNC Connector
Pinout” on page 240.
Pinout” on page 240.
To install or remove a PIM, see “Replacing a PIM” on page 174.
Table 28: Status LEDs for T3 and E3 Ports
Description
State
Color
Online with no alarms or failures.
On steadily
Green
Active with a local alarm. The router has
detected a failure.
detected a failure.
On steadily
Red
■
Loopback mode.
■
T3 (DS3)—Remote endpoint is in red
alarm failure.
alarm failure.
■
E3—Remote defect indication (RDI).
On steadily
Yellow
Offline.
Off
Unlit
For alarms, see the configuring and monitoring alarms information in the J-series
Services Router Administration Guide.
Services Router Administration Guide.
60
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Field-Replaceable PIMs
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide