Juniper Networks M7I - Manual (Page 57)

DS3/E3 Enhanced IQ (IQE) PIC (M7i Router)
RX RX
RX
RX
TX
TX
TX
TX
PORT 0
PORT 1
PORT 2
PORT 3
DS3/E3
g006016
• Junos OS Release 10.2 and later Software release
• Four DS3 or E3 ports
• DS3 or E3 is configurable on a per-port granularity
• Power requirement: 0.51 A @ 48 V (24.7 W)
Description
Hardware features • Ports are numbered 0 through 3 from left to right
Software features • Maximum transmission units (MTUs) of up to 9192 bytes
• Subrate and scrambling:
NOTE: Only DS3 interfaces support subrate and scrambling.
• Digital Link/Quick Eagle
• Kentrox
• Larscom
• ADTRAN
• Verilink (subrate: only port A mode)
NOTE: For DS3 interfaces, Verilink does not function if an IQE interface is paired with an IQ
interface.
• Data service unit (DSU) functionality
• B3ZS line encoding
• Framing: M13, C-bit parity, framed clear channel
• Full bit error rate test (BERT)
• ANSI T1.403 FDL
• Internal and loop clocking
• DS3 far end alarm and control (FEAC) channel
• Local line, remote line, and remote playback loopback testing
• Simple Network Management Protocol (SNMP): DS3 MIB
• Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
• Enhanced fine-grained queuing per logical interface. See the Junos OS Class of Service
Configuration Guide for more information about class of service features.
• Encapsulations:
• Circuit cross-connect (CCC)
• Translational cross-connect (TCC)
• Extended Frame Relay for CCC and TCC
57 Copyright © 2010, Juniper Networks, Inc.
DS3/E3 Enhanced IQ (IQE) PIC (M7i Router)