Catalyst 3750G Integrated Wireless Lan Controller Switch Front Panel; 10/100 And 10/100/1000 Ports - Cisco 3750G-12S - Catalyst Switch - Stackable Hardware Installation Manual

10/100 and 10/100/1000 Ports

Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel

The Catalyst 3750G Integrated Wireless LAN Controller switches have an integrated Cisco wireless
LAN controller. Depending on the switch model, the integrated wireless controller can support up to 25
or 50 Cisco Lightweight Access Points. The 10/100/1000 PoE ports switch are numbered 1 through 24
and grouped in pairs. The first member of the pair (port 1) is above the second member (port 2), as shown
in Figure
switch also has two internal Gigabit Ethernet ports that connect the switch and the controller. The
internal ports are numbered as ports 27 and 28 and are not visible on the front panel.
Figure 1-15
SYST
RPS
MAS TR
ST A T
DUP LX
SPEE D
ST ACK
PoE
1
10/100 and 10/100/1000 Ports
You can set the 10/100 ports on the switch to operate in any combination of half duplex, full duplex,
10 Mb/s, or 100 Mb/s. You can set the 10/100/1000 ports to operate in 10 or 100 Mb/s in half or full
duplex, or in 1000 Mb/s in full duplex.
You can set both the 10/100 and the 10/100/1000 ports for speed and duplex autonegotiation, in
compliance with IEEE 802.3AB. (The default setting is autonegotiate.)
You can configure duplex mode to half, full, or autonegotiate on Gigabit Ethernet interfaces if the speed
Note
is set to 10 or 100 Mb/s. You cannot configure half-duplex mode on Gigabit Ethernet interfaces if the
interface speed is 1000 Mb/s.
When set for autonegotiation, the port senses the speed and duplex settings of the attached device and
advertises its own capabilities. If the connected device also supports autonegotiation, the switch port
negotiates the best connection (the fastest line speed that both devices support and full-duplex
transmission if the attached device supports it) and configures itself accordingly. In all cases, the
attached device must be within 328 feet (100 meters).
The 10/100 or the 10/100/1000 PoE ports on the switch provide PoE support for devices that are
compliant with IEEE 802.3af. They also provide Cisco pre-standard PoE support for Cisco IP Phones
and Cisco Aironet Access Points.
Catalyst 3750 Switch Hardware Installation Guide
1-10
1-15. Port 3 is above port 4, and so on. The SFP module slots are numbered 25 and 26. The
Catalyst 3750G-24WS-S25 and 3750G-24WS-S50 Switch
1 2
3
4
1X
5 6
7 8
9 10
2X
2
10/100/1000 PoE ports
Ca tal yst
37 50 G
Wi rel ess SER IES
Po E-2 4
LA N Co
ntr oll er
11 12
11X
13 14
15 16
13X
17 18
19 20
21 22
23 24
23X
12X
14X
25
24X
1
2
SFP module slots
Chapter 1 Product Overview
OL-6336-10