Juniper Networks J2320 manual Channelized T1/E1/ISDN PRI PIM

J2320, J2350, J4350, and J6350 Services Router Getting Started Guide

Figure 31: Channelized T1/E1/ISDN PRI PIM

The Dual-Port Channelized T1/E1/ISDN PRI PIM provides the following key features:

■Onboard network processor

■Two-port channelization

■Interfaces that are software configurable as T1 or E1 channels or ISDN PRI B-channels

■Clear-channel, fractional, and channelized operation

■Lower latency due to the addition of a Freescale processor

■Maximum MTU value of 4500 bytes (for channelized T1 or E1 interface) and 4098 bytes (for ISDN PRI services)

NOTE: For a clear-channel T1 or E1 interface, the maximum MTU is 9150 bytes.

■56-Kbps and 64-Kbps modes

■ANSI T1.102, T1.107, and T1.403 standards compliance

■G.703, G.704, and G.706 E1 standards compliance

■Independent internal and external clocking system

■Loopback, bit error rate test (BERT), T1 facilities data link (FDL), and long buildout diagnostics

For pinouts of cable connectors for channelized T1/E1/ISDN PRI PIMs, see “ISDN

RJ-45 Connector Pinout” on page 241.

To install or remove a PIM, see “Replacing a PIM” on page 174.

Channelized T1/E1/ISDN PRI LEDs indicate PIM and port status. Table 27 on page 59 describes the meaning of the LED states.

NOTE: The STATUS LED displays channelized T1 or E1 port activity and alarms only. It does not display ISDN PRI B-channel or D-channel status.

58■ Field-Replaceable PIMs