Chapter 1 Module Overview and Specifications
Ethernet and Fast Ethernet Switching Modules
1-22
Catalyst 4500 Series Module Installation Guide
78-13267-06
WS-X4248-RJ21V
The WS-X4248-RJ21V 48-port IEEE 802.3af-compliant PoE 10/100BASE-TX
RJ-21 switching module (see Figure 1-21) has the following specifications:
Figure 1-21 WS-X4248-RJ21V IEEE 802.3af-Compliant PoE 48-Port 10/100-Mbps Switching Module
To provide PoE with the 48-port PoE 10/100BASE-TX switching module in a
Catalyst 4006 switch, you must have a power entry module (PEM) and power
shelf installed. The Catalyst 4006 switch can provide 312 W per PoE module to
powered devices. If the powered devices are using the maximum 15.4 W per port,
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
Specification Description
Module type 10/100BASE-TX Fast Ethernet switching module
with IEEE 802.3af PoE
Port duplex mode Half or full duplex mode
Port speed 10 or 100 Mbps
Number of ports 48
Connector type RJ-21 (See Figure 2-5 on page 2-5 or Figure 2-6 on
page 2-5.)
Cable type Category 5 UTP
Power over Ethernet Up to 15.4 W per powered device on all 48 ports
(to a 312 W total on the Catalyst 4006)
Power regulation Internal on the switching module
29217
STATUS
W
S
-X
4
1
4
8
-R
J
2
1
1
0
/1
0
0
F
A
S
T
E
T
H
E
R
N
E
T
1
2
3
45
6
7
8
9
10
1112
13
1415
16
17181920
2122
2324
25
26
2728
29
30
31
32
3334
3536
3738
39
4041
4243
4445
46
47
48
