Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 199

Connecting HSSI Network Modules
This chapter describes the 1-port High-Speed Serial Interface (HSSI) network module for Cisco 3600
series and Cisco 3700 series routers and contains the following sections:
•
•
•
Tip To determine whether your router supports a specific network module, see
HSSI Network Modules
The 1-port High-Speed Serial Interface (HSSI) network module (see
for fractional DS3 rate links and slower.
Figure 13-1 HSSI Network Module
HIGH SPEED SERIAL
1HSSI
Connecting HSSI Modules to the Network
The HSSI module contains a 50-pin receptacle, color-coded blue. You can connect this port to a network
in either of two ways:
•
OL-2485-20
HSSI Network Modules, page 13-1
Connecting HSSI Modules to the Network, page 13-1
HSSI Network Module LEDs, page 13-3
To an external data service unit (DSU), using a HSSI data terminal equipment (DTE) cable for
operation in DTE mode (see
default.
HSSI 0
HSSI port LEDs
HSSI port
Figure 13-2). The HSSI port is configured to operate in this mode by
Cisco Network Modules Hardware Installation Guide
C H A P T E R
Table 1-6 on page
Figure 13-1) provides connectivity
EN
Enable LED
13
1-16.
13-1