Cabletron Systems 2000, Руководство по началу работы, Страница: 39 / 92

SmartSwitch Router 2000 Getting Started Guide 39
Chapter 1: Features Overview
Figure 7 shows the front panel of the Quad Serial WAN expansion module.
Figure 7. Front panel of Quad Serial – C/CE WAN expansion module
Cabling and Connector Specifications
The following table lists the media specifications for the Dual Serial and Quad
Serial – C/CE expansion modules.
LEDs
The Dual Serial and Quad Serial – C/CE expansion modules use the following LEDs.
1,2
Tx
Rx
Link
Quad Serial - C SSR-2-SERC
1 2
3,4
Tx
Rx
Link
3 4
Table 13. Dual Serial and Quad Serial – C/CE WAN expansion module specifications
Port Type Specification
Dual serial • V.35, X.21, EIA530, EIA530A, or RS449
• LFH-60 high density connector; see “Dual Serial and Quad
Serial – C/CE Expansion Modules” on page 54 for pin
assignments
• Recommended 3 meters (10 feet) segment length for standard
WAN expansion module-to-CSU/DSU data port.
a
a. Connector cables for WAN expansion modules may be ordered from Cabletron Systems. For detailed
information, including part numbers, see
“Dual Serial and Quad Serial – C/CE Expansion
Modules” on page 54
.
Table 14. Dual Serial and Quad Serial – C/CE WAN expansion module LEDs
LED Description
Per-port Link Indicates that the expansion module detects a cable plugged into the
port and a good link is established.
Per-port Rx Indicates when the port’s transceiver receives data.
Per-port Tx Indicates when the port’s transceiver transmits data.