Chapter 1 Module Overview and Specifications
Other Switching Modules
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Catalyst 4500 Series Module Installation Guide
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there is only enough power for 18 powered devices. If the powered devices are
using less than 15.4 W per port, more powered devices can be powered, up to the
312 W maximum. For more information about installing the PEM or the external
power shelf, refer to the Catalyst 4000 Series Installation Guide, Catalyst 4500
Series Installation Guide, Installation and Configuration Note for the Catalyst
4500 Series AC Power Shelf, or the Catalyst 4500 Series Power Entry Module and
External Power Shelf Installation Note.
To provide PoE with the 48-port PoE 10/100/1000BASE-T switching module in
a Catalyst 4500 series switch, you must have an PoE-enabled power supply. All
power supplies support PoE except the 1000 W and 1400 W AC power supplies.
Note Auto MDIX is not supported on PoE enabled switching modules.
Other Switching Modules
This section describes other Catalyst 4500 series switching modules and includes
the following sections:
• WS-X4019, page 1-42
• Access Gateway Module (WS-X4604-GWY), page 1-43
WS-X4019
The WS-X4019 backplane channel module (see Figure 1-39) has the following
specifications:
Specification Description
Module type Backplane channel module
Port duplex mode –
Port speed –
Number of ports 0
