Software release
- JUNOS 4.1 and later
Description
- Two or four DS3 ports
- Power requirement: 0.47 A/48 V @ 22.5 W
- Integrated DSU interoperability with leading DSU vendors
Hardware features
- High-performance throughput on all ports at speeds up to 44.736 Mbps, full duplex
- C-bit framing
- B3ZS line encoding
- Subrate and scrambling:
- Digital Link
- Kentrox
- Larscom
- Per-port rate policing on input
- Per-port rate shaping on output
- Packet buffering, Layer 2 parsing
Software features
- DS3 functionality:
- C-bit framing
- B3ZS line encoding
- DS3 diagnostics and loopback control
- DS3 alarm and event counting and detection
- Per-packet counts and byte counts
- Local and remote loopback testing, as well as BERT testing per DS3
- DS3 Far-end Alarm and Control (FEAC) channel support
- Encapsulations:
- High-level Data Link Control (HDLC)
- Frame Relay
- Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC)
- Point-to-Point Protocol (PPP)
Cables and connectors
- Custom 10-ft (3.05-m) posilock SMB to BNC male cable, separate RX and TX (provided)
LEDs One tricolor per port:
- Off—Not enabled
- Green—Online with no alarms or failures
- Amber—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)
- Bit Error Rate Test (BERT) functionality on PIC (you can configure one DS3 channel in BERT mode and configure the remaining channels to transmit and receive normal traffic)
- Equipment failure (Does not affect service)
- Far-end Block Error (FEBE)
- Frame error
- Idle code, Idle received
- Local and remote loopback
- Loss of Signal (LoS)
- Out of Frame (OoF)
- Parity bit (P-bit) disagreements
- Path parity error
- Yellow alarm bit (X-bit) disagreements
