Chapter 1 Product Overview
Front-Panel Description
1-8
Catalyst 2900 Series XL Hardware Installation Guide
78-6461-04
(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
.
Note
Cisco Long-Reach Ethernet (LRE) products are designed to share lines with
analog, Integrated Services Digital Network (ISDN), and digital private branch
exchange (PBX) switch telephones that use the 0 to 700 kHz frequency range.
Digital telephones connected to digital PBX switches that use frequencies above
700 kHz do not work when sharing a line with LRE signals. Due to the proprietary
nature of digital PBX switches, some digital PBX switch services use frequencies
above 700 kHz. [CSCdu73260]
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 telephone network is not required, a splitter is not needed, and
the switch can connect directly to the patch panel.
Module Slots
The module 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 module 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