Cisco 2900 SERIES XL - Manual (Page 28)

Chapter 1 Product Overview
100BASE-FX Ports
1-8
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-03
If telephone services, such as voice or integrated services digital network (ISDN),
use the same cabling as LRE traffic, the LRE port must be connected to the patch
panel through a basic telephone service, also known as plain old telephone service
(POTS) splitter. The splitter routes LRE data (high-frequency) and voice
(low-frequency) traffic from the telephone line to the switch and private branch
exchange (PBX) switch or public-switched telephone network (PSTN)
If the other telephone services are connected through a private branch exchange
(PBX) switch, a Cisco LRE 48 POTS Splitter can be used. The PBX routes voice
traffic to private telephone networks and the public system telephone network
(PSTN). For more information about the Cisco LRE 48 POTS Splitter
(PS-1M-LRE-48), refer to the Installation Notes for the Cisco LRE 48 POTS
Splitter.
If the installation does not have a PBX, a homologated POTS splitter is required
to directly connect to the PSTN. For more information about homologated POTS
splitters, contact your Cisco sales representative.
Note If a connection to a phone network is not required at all, a splitter is not
needed, and the switch can connect directly to the patch panel.
Expansion Slots
The expansion slots (see Figure 1-2 ) are for the Catalyst 2900 XL hot-swappable
modules. Each module port is internally switched to other switch ports and is
managed through the switch management interfaces.
Table 1-1 lists the modules that the expansion slots support.
Table 1-1 Expansion Modules
Module Type Model Number
10/100 Ethernet WS-X2914-XL
WS-X2914-XL-V
WS-X2922-XL
100 BASE-FX WS-X2922-XL-V
WS-X2924-XL-V