M20 Internet Router PIC Guide
Channelized T1 IQ PIC
Software release | ■ | JUNOS 7.4 and later |
Description | ■ | Ten T1 ports |
| ■ Power requirement: 0.15 A @ 48 V (7.2 W) | |
| ■ Intelligent queuing (IQ) PICs support | |
| ■ Channelization: T1, FT1, NxDS0 | |
Hardware features | ■ | Data service unit (DSU) and channel service unit (CSU) functionality |
| ■ Ports configurable as clear channel T1 interfaces with | |
| ■ Framing: Superframe (SF or D4) and Extended Superframe (ESF) | |
| ■ Supports B8ZS (bipolar | |
| ■ Local, remote, and payload loopback testing | |
| ■ ANSI T1.403 loopback support: | |
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| ■ Responds to embedded loopback commands upon receipt of an FDL command |
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| from remote end with loopup and loopdown at both line and payload level |
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| ■ Insertion of loopback commands enables remote CSU/NIU/Smartjack to enter |
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| loopback and loopdown at both the line and payload level (ANSI and Telcordia) |
| ■ | Inband loopback support: |
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| ■ Responds to inband loopback commands at both the line and payload level (ANSI |
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| 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)
34■ Channelized T1 IQ PIC