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Channelized T1 IQ PIC (M320 Router)
Description | - Ten T1 ports
- Power requirement: 0.15 A @ 48 V (7.2 W)
- Fine-grained queuing per logical interface
- Channelization: T1, FT1, NxDS0
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Hardware features | - Data service unit (DSU) and channel service unit (CSU)
functionality
- Ports configurable as clear channel T1 interfaces with
1.544-Mbps connectivity
- Framing: Superframe (SF or D4) and Extended Superframe
(ESF)
- Supports B8ZS (bipolar 8-zero substitution) and AMI (alternate
mark inversion) line coding
- Local, remote, and payload loopback testing
- ANSI T1.403 loopback support:
- Responds to embedded loopback commands upon receipt of
an FDL command from remote end with loopup and loopdown at both line
and payload level
- Insertion of loopback commands enables remote CSU/NIU/Smartjack
to enter loopback and loopdown at both the line and payload level
(ANSI and Telcordia)
- Inband loopback support:
- Responds to inband loopback commands at both the line
and payload level (ANSI and Telcordia)
- Insertion of inband loopback commands at both the line
and payload level (ANSI and Telcordia)
- Clocking support of external (line) and internal
- Buildout support of the following ranges:
- 0 through 132 (Line buildout is from 1 through 132 feet)
- 133 through 265 (Line buildout is from 133 through 265
feet)
- 266 through 398 (Line buildout is from 266 through 398
feet)
- 399 through 531 (Line buildout is from 399 through 531
feet)
- 532 through 655 (Line buildout is from 532 through 655
feet)
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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)
- SNMP: T1 MIB and DS0 MIB
- Dynamic, arbitrary channel configuration
- Full bit error rate test (BERT) patterns at T1 and DS0
levels
- Encapsulations:
- High-Level Data Link Control (HDLC)
- Frame Relay
- Circuit cross-connect (CCC)
- Translational cross-connect (TCC)
- Point-to-Point Protocol (PPP)
|
Cables and connectors | - 120-ohm RJ-48C connector (female)
|
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
|
Alarms, errors, and events | - Alarm indication signal (AIS)
- Bipolar violation (BPV)
- Excessive zero (EXZ)
- Line code violation (LCV)
- Loss of frame (LOF)
- Loss of signal (LOS)
- Remote defect indication (RDI)
- Error seconds (ES)
- Severely errored seconds (SES)
- Severely errored frames (SEF)
- Bit error event (BEE)
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Instrumentation (counters) | - Layer 2 per-queue and per-channel packet and byte counters
- 24–hour history or error counter updated at 15–minute
intervals
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Published: 2012-03-21
Copyright© 1999-2012 Juniper Networks, Inc. All rights reserved.
