Datasheet

Dual CT1/E1 GPIM Network Interface Specifications
The Dual CT1/E1 Gigabit-Backplane Physical Interface Module (GPIM) provides the
network interface specifications specific to T1 or E1 modes, listed in Table 61 on page 151.
Table 61: Dual CT1/E1 GPIM Network Interface Specifications
E1 ModeT1 ModeDescription
Network Interface Specifications
HDB3AMI/B8ZSLine encoding
Framed clear channel (64
Kbps)
Unframed clear channel
Framed clear channelMode
G704
G704 with no CRC4
G703 Unframed
Superframe (D4/SF)
Extended Superframe (ESF)
Fractional framing
HDLC Features
(E1:N=1 to 31)(T1:N=1 to 24)N x 64 Kbps or N x 56
Kbps, nonchannelized
data rates
16/3216/32CRC
SupportedSupportedShared flag
SupportedSupportedIdle flag/fill
Runts, Giants, FCS, Error, Abort
Error, Align Error
Runts, Giants, FCS, Error, Abort
Error, Align Error
Counters:
Related
Documentation
Dual CT1/E1 GPIM Overview on page 149
Dual CT1/E1 GPIM Key Features on page 150
Dual CT1/E1 GPIM Hardware Specifications on page 151
Dual CT1/E1 GPIM LEDs on page 152
Dual CT1/E1 GPIM Components on page 153
Dual CT1/E1 GPIM Basic Configuration on page 153
Dual CT1/E1 GPIM Hardware Specifications
The Dual CT1/E1 Gigabit-Backplane Physical Interface Module (GPIM) has the hardware
specifications listed in Table 62 on page 152.
151Copyright © 2012, Juniper Networks, Inc.
Chapter 16: Dual CT1/E1 GPIM