Quad Ct1/E1 Gpim Network Interface Specifications - Juniper SRX Series Manual

Quad CT1/E1 GPIM Network Interface Specifications

The Quad CT1/E1 Gigabit-Backplane Physical Interface Module (GPIM) provides the network interface
specifications specific to T1 or E1 modes, listed in
Table 20: Quad CT1/E1 GPIM Network Interface Specifications
Description
Network Interface Specifications
Line encoding
Mode
Fractional framing
HDLC Features
N x 64 Kbps or N x 56
Kbps, nonchannelized data
rates
CRC
Shared flag
Idle flag/fill
Counters:
Table 20 on page
T1 Mode
AMI/B8ZS
Framed clear channel
Superframe (D4/SF)
Extended Superframe (ESF)
(T1:N=1 to 24)
16/32
Supported
Supported
Runts, Giants, FCS, Error, Abort Error,
Align Error
30.
E1 Mode
HDB3
Framed clear channel (64 Kbps)
Unframed clear channel
G704
G704 with no CRC4
G703 Unframed
(E1:N=1 to 31)
16/32
Supported
Supported
Runts, Giants, FCS, Error, Abort Error,
Align Error
30