Specifications

9
Channelized and Electrical Interface Line Card Installation and Configuration
78-16417-02
Product Overview
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Product Overview
The 2-port channelized OC-3/STM-1 (DS1/E1) line card provides E1/DS1 aggregation for the
Cisco 12000 Series Router. The 2-port channelized OC-3/STM-1 (DS1/E1) line card interfaces with the
router switch fabric and provides two OC-3/STM-1 duplex SC single-mode intermediate-reach optical
interfaces.
When configured for operation in a Synchronous Digital Hierarchy (SDH) environment, each STM-1
port is capable of supporting channelization into either 63 independent E1s through VC-12 ETSI
mapping, or 84 J1 (Japanese T1 equivalent) channels through VC-11 ANSI mapping.
When configured for operation in a Synchronous Optical Network (SONET) environment, each OC-3
port is capable of supporting channelization into 84 independent DS1 channels using VT1.5 mapping or
CT3 mapping into STS-1.
Fractional E1 and individual 64-kbps channels can also be configured, up to the limit of 105 channel
definitions per STM-1 (35 per TUG-3). Fractional T1 and individual DS0 channels can also be
configured, up to the limit of 35 channel definitions per STS-1 (210 per line card).
Each 2-port channelized OC-3/STM-1 (DS1/E1) line card supports up to 126 E1s when configured for
SDH operation, 168 DS1 connections when configured for SONET operation, or any combination of 64
kbps/DS0, fractional E1/T1, or E1/T1 interface definitions, up to the limit of 210 per line card.
Figure 6 shows the front view of this line card.
Figure 6 2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card
6-Port Channelized T3 (T1) Line Card Product Overview
The 6-port channelized T3 (T1) line card performs High-Level Data Link Control (HDLC) encapsulation
and de-encapsulation functions, and all other necessary functions including timing, signaling, and
framing in compliance with DS1 and DS3 specifications.
Figure 7 shows the front view of this line card.
116101
1
ACTIVE
CARRIER
0
1
2CHOC3/STM1-IR-SC
ACTIVE
CARRIER
CLASS 1 LASER PRODUCT
PRODUCTO LASER DE CLASSE 1
PRODUIT LASER DE CLASSE 1
LASERPRODUKT DER KLASSE 1
CLEAN
CONNECTOR
WITH ALCOHOL
WIPES BEFORE
CONNECTING
ACTIVE
CARRIER
2
3
4
1 Ejector lever (one at each end) 3 Status LEDs
2 Port 0 4 Alphanumeric LEDs