Software release

• Junos OS Release 5.4 and later

Description

• Ten E1 ports
• Power requirement: 0.15 A/48 V @ 7.2 W
• Supports up to 24 NxDS0 channels per port
• Data Service Unit (DSU) functionality

Hardware features

• Ports configurable as clear channel E1 interfaces with 2.048-Mbps connectivity
• Rate limiting on input and output
• Packet buffering, Layer 2 parsing

Software features

• Four data-link connection identifiers (DLCIs) per logical customer channel
• Unframed E1 G.703 and G.704 framing modes
• HDB3 line coding
• CRC4 configurable
• Per-packet counts and byte counts
• Local and remote loopback testing
• 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

• 128-ohm RJ-48C

LEDs

One bicolor per port:

• Off—Port not enabled
• Green—Physical E1 link is up; individual subchannels can be down
• Red—Physical E1 link is down

Alarms, errors, and events

• Alarm indication signal (AIS)
• Loss of frame (LOF)
• Out of frame (OOF)
• Failed signal rate (FSR)