Table of Contents
Advertisement
E120 and E320 11.1.x Module Guide
SRP IOA
Module label
IOA label
Number of IOA ports
Software release
Description
Capability
Software features
Model compatibility
Line module compatibility
SRP module compatibility
Port redundancy support
Cables and connectors
LEDs
50
SRP IOA
SRP IOA
Not applicable
3
First supported: 7.0.1
15 W maximum
Pairs with SRP module
Interfaces with the SRP modules through the system's midplane.
Ethernet (IEEE 802.3)
10/100Base-T
RS-232
Auxiliary port allows access to debug ports on a specific processor (SRP module,
LM).
External clock input accepts T1 or E1 signaling. You must configure the interface for
T1 or E1. No additional configuration for a specific framing mode is required (for
example, SF/ESF).
The BNC connector has a 75–Ohm load impedance.
T1 inputs must be converted from a balanced 100–Ohm signal to an unbalanced
75–Ohm signal by using a balun.
The minimum signal amplitude at the BNC connector is 400mV peak.
Not applicable
E320 router
E120 router
Not applicable
SRP-100
SRP-120
SRP-320
Not applicable
Terminal blocks
Two dual-purpose BNC connectors (primary and secondary) for BITS timing clock
sources (E1 or T1); 75–ohm E1 2.048–Mbps/T1 1.544–Mbps inputs terminating with
a 120/75 ohm or 100/75 ohm balun
One 10/100Base-T Ethernet management port with an RJ-45 connector
Two RS-232 ports with DB-9 connectors for direct command line interface (CLI) and
debug access
See E120 and E320 Hardware Guide, Chapter 5, Cabling the Router for more information.
None
Advertisement
Table of Contents
