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Channelized E1/T1 Enhanced IQ (IQE) PIC (M320 Router)
Description | - Ten E1 or T1 ports
- DS1 and E1 interfaces are selectable on a per-port granularity
- E1 channelization per PIC:
- 10 E1 channels
- 310 DS0 channels
- T1 channelization per PIC:
- 10 T1 channels
- 240 DS0 channels
- Power requirement: 0.52 A @ 48 V (24.73 W)
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Hardware features | - Top row: 0 and 1 from left to right
- Second row: 2 and 3 from left to right
- Third row: 3 and 4 from left to right
- Bottom row: 5 and 6 from left to right
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Software features | - 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. - Support sending and receiving in-band loopback codes in
both framed and unframed mode:
- Framed in-band loopback at CSU
- Framed in-band loopback at Smartjack (ANSI)
- Unframed in-band loopback at CSU
- Unframed in-band loopback at Smartjack (ANSI)
- You can configure the following framing modes using the
CLI:
- T1—SF (D4/superframe), ESF (extended superframe)
- E1—G704, G704–no-crc4, unframed
- Packet buffering, Layer 2 parsing
- Local line, remote line, and remote payload loopback testing;
each channel can be looped individually and independently of other
channels (DS1/E1 channels)
- Simple Network Management Protocol (SNMP): T1 MIB (RFC
1406)
- Dynamic, arbitrary channel configuration
- Full bit error rate test (BERT)
- Clocking: internal and loop (clock recovered from network
and use for transmit). Internal timing is the default for channelized
T1 ports. The external master clock can be a multiple of 2.048 MHz
or 1.544 MHz for E1 or T1 operation.
- Line coding:
- T1—CLI configurable as AMI or B8ZS
- E1—HDB3
- Circuit cross-connect (CCC)
- Translational cross-connect (TCC)
- Extended Frame Relay for CCC and TCC
- Flexible Frame Relay
- Frame Relay
- Frame Relay for CCC
- Frame Relay for TCC
- Frame Relay port CCC
- High-Level Data Link Control (HDLC)
- HDLC framing for CCC
- HDLC framing for TCC
- MPLS CCC
- MPLS TCC
- Point-to-Point Protocol (PPP)
- PPP for CCC
- PPP for TCC
- Encapsulations available only for DS0 and DS1:
- Multilink Frame Relay end-to-end (MLFR FRF.15)
- Multilink Frame Relay (MLFR) UNI NNI (MFR FRF.16)
- Multilink PPP (MLPPP)
Encapsulations available only for DS1:
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Cables and connectors | - 120-ohm RJ-48C connector (female)
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LEDs | One tricolor per port: - Off—Not enabled
- Green—Online with no alarms or failures
- Yellow—Online with alarms for remote failures
- Red—Active with a local alarm; router has detected
a failure
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Alarms, errors, and events | - Alarm indication signal (AIS)
- Loss of frame (LOF)
- Remote alarm indication signal (RAIS)
- 24-hour alarm reporting history maintained for error statistics
and failure counts, 15-minute intervals on all errors
- Bursty errored seconds (BES)
- CRC errors
- Errored seconds (ES)
- Line errored seconds (LES)
- Loss of framing seconds (LOFS)
- Loss of signal seconds (LOSS)
- Severely errored seconds (SES)
- Severely errored framing seconds (SEFS)
- Unavailable seconds (UAS)
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Instrumentation (counters) | - Layer 2 per-queue and per-channel packet and byte counters
- Layer 2 per-queue and per-channel packet and byte drop
counters
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Published: 2012-03-21
Copyright© 1999-2012 Juniper Networks, Inc. All rights reserved.
