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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-03
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers Shared Port Adapters
8-Port Channelized T1/E1 Serial SPA Overview
8-Port Channelized T1/E1 Serial SPA Interface Specifications
The E1 interface on the 8-Port Channelized T1/E1 Serial SPA uses RJ-48c receptacles for E1 (120-Ohm)
cables with RJ-45 connectors. You can use all ports simultaneously. Each E1 connection supports
interfaces that meet G.703 standards. The RJ-45 connection does not require an external transceiver. The
E1 ports are E1 interfaces that use 120-ohm shielded twisted pair (STP) cables.
Caution
Shielded T1/E1 cables must be used to comply with FCC/EN55022/CISPR22 Class A emissions
requirements.
8-Port Channelized T1/E1 Serial SPA Cables, Connectors, and Pinouts
shows an RJ-45 connector.
Figure 3-6
RJ-45 Connector
describes the signals and connector pinouts for RJ-45 cable connectors.
A/L
Off
Off
Port is not enabled by software.
Green
On
Port is enabled by software, loopback is off.
Amber
On
Port is enabled by software, loopback is on.
STATUS
Off
Off
SPA power is off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and good, and SPA is being configured.
Table 3-8
8-Port Channelized T1/E1 Serial SPA LEDs
LED Label
Color
State
Meaning
32770
RJ-45
RJ-48c
Pin 1
Pin 8
Table 3-9
RJ-45 Connector Pinouts
Pin
Signal
Description
1
RX–
Receive ring –
2
RX+
Receive tip +
3
NC
No connection
4
TX–
Transmit ring –
5
TX+
Transmit tip +
6
NC
No connection