SRP IOA

Module label SRP IOA
IOA label
Not applicable
Number of IOA ports
3
Software release
First supported: 7.0.1
Description
15 W maximum
Pairs with SRP module
Interfaces with the SRP modules through the system's midplane.
Capability
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.
Software features
Not applicable
Model compatibility
E320 router
E120 router
Line module compatibility
Not applicable
SRP module compatibility
SRP-100
SRP-120
SRP-320
Port redundancy support
Not applicable
Cables and connectors
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.
LEDs
None
Alarms, errors, and events
See Monitoring Modules in JunosE System Basics Configuration Guide, Chapter 6, Managing Modules.

Module label	SRP IOA
IOA label	Not applicable
Number of IOA ports	3
Software release	First supported: 7.0.1
Description	15 W maximum Pairs with SRP module Interfaces with the SRP modules through the system's midplane.
Capability	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.
Software features	Not applicable
Model compatibility	E320 router E120 router
Line module compatibility	Not applicable
SRP module compatibility	SRP-100 SRP-120 SRP-320
Port redundancy support	Not applicable
Cables and connectors	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.
LEDs	None
Alarms, errors, and events	See Monitoring Modules in JunosE System Basics Configuration Guide, Chapter 6, Managing Modules.