Juniper M120 - M120 Midplane Description

Channelized E1 IQ PIC
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JUNOS 8.0R2 and later (Type 1)
NOTE: This PIC is not supported in JUNOS Release 8.1R1.
Software release
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Ten E1 ports
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Power requirement: 0.15 A @ 48 V (7.2 W)
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Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface.
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Channelization: E1, DS0
Description
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Data service unit (DSU) functionality
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Ports configurable as clear channel E1 interfaces with 2.048-Mbps connectivity
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Supports unframed E1 G.703 and G.704 framing modes
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Supports HDB3 line coding
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CRC4 configurable
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Local and remote loopback testing
Hardware features
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Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection
(RED), weighted random early detection (WRED)
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Simple Network Management Protocol (SNMP): E1 MIB, DS0 MIB
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Dynamic, arbitrary channel configuration
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Full bit error rate test (BERT)
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Encapsulations:
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High-Level Data Link Control (HDLC)
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Frame Relay
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Circuit cross-connect (CCC)
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Translational cross-connect (TCC)
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Point-to-Point Protocol (PPP)
Software features
Channelized E1 IQ PIC ■ 35
Channelized E1 IQ PIC