X.21/V.35 Module Combination

Line module labelX.21/V.35
I/O module labelX.21/V.35 I/O
Number of I/O ports
  • 16
Software release
  • First supported: 2.10.1, 3.3.2
  • Final supported: 7.3.x
Description
  • 60 W
  • X.21/V.35 synchronous serial interface
Type
  • Non-ASIC
Capability
  • HDLC framing
Software features
  • See ERX Module Guide, Appendix A, Module Protocol Support for information about the layer 2 and layer 3 protocols and applications that this module combination supports.
Model compatibility
  • ERX7xx models
  • ERX1410 router
SRP module compatibility
  • SRP-5G
  • SRP-5G+
  • SRP-10G
Module redundancy support
  • Not applicable
Cables and connectors
  • 200-pin proprietary socket on I/O module
  • DB15 X.21 or DB34 V.35 at remote end
  • Serial signals can travel a limited distance without significant degradation. Slower serial signals can travel farther without degradation than faster serial signals. See “Cable Lengths” row for the maximum cable lengths you can use to prevent signal degradation at various transmission speeds.
Cable Lengths
Transmission Speed (Hz)
  • 2400
  • 4800
  • 9600
  • 19200
  • 38400
  • 56000
  • 2048000
Cable Length (Meters/Feet)
  • 1250/4100
  • 625/2050
  • 312/1025
  • 156/513
  • 78/256
  • 31/102
  • 8/25
LEDs
  • See ERX Module Guide, Appendix B, Module LEDs.
Alarms, errors, and events
  • See Monitoring Interfaces in the Configuring X.21/V.35 Interfaces chapter of the JunosE Physical Layer Configuration Guide for Release 8.0.x and earlier.