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T1 PIC
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JUNOS 6.1 and laterSoftware release
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Four T1 ports
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Power requirement: 0.08 A @ 48 V (3.7 W)
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Supports clear channel T1 per port (1.544 Mbps per channel)
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Supports attenuation up to –12 dBm
Description
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Per-port loop timing
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Onboard DSU functionality for T1 connectivity
Hardware features
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ESF and SF framing
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B8ZS and AMI coding
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ESF CSU counters, WRT impairments, and CRC checking
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Local DS1 line loopback, remote line loopback
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Configurable clock source—internal or loop
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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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Point-to-Point Protocol (PPP)
Software features
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100-ohm RJ-48 connectorCables and connectors
One tricolor per port:
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Off—Not enabled
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Green—Online with no alarms or failures
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Amber—Online with alarms for remote failures
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Red—Active with a local alarm; router has detected a failure
LEDs
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Alarm indication signal (AIS)
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Bipolar violations
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Excessive zeros
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Far-end block errors (FEBE, E-bit errors)
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Loss of frame (LOF), Loss of signal (LOS)
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Yellow alarm bit (X-bit) disagreements
Alarms, errors, and
events
T1 PIC ■ 75
T1 PIC