14 CHAPTER 1: SWITCH 7750 COMPONENTS
Table 14 describes the 4-port 10/100/1000BASE-T submodule LEDs.
Table 15 lists specifications of the 4-port 10/100/1000BASE-T submodule.
See “Electrical Port Connector” on page 78 for an illustration of the RJ-45
connector and MDI/MDI-X pinout details.
I/O Modules The Switch 7750 provides multiple slots for I/O modules below the Fabric slots.
The following I/O modules are supported:
■ 48-port 10/100BASE-T FE PoE Module (3C16891)
■ 48-port 10/100/1000BASE-T PoE Module (3C16890)
■ 48-port 10/100BASE-TX FE Module (3C16889)
■ 48-port 10/100/1000BASE-T Module (3C16888)
■ 48-port 100BASE-X SFP Module
■ 20-Port 10/100/1000BASE-T Module (3C16863A)
■ 20-Port 1000BASE-X-SFP Module (3C16862A)
■ 12-port 10/100/1000BASE-T and 4-port 1000BASE-X SFP Module (3C168916)
■ 12-port 1000BASE-X SFP and 4-port 10/100/1000BASE-T Module (3C186917)
■ 8-port 1000BASE-X GBIC Module (3C16858)
■ 8-port 10/100/1000BASE-T GE Module (3C16859)
■ 100Base-FX SFP mode (3C16865915)
Consider the following when selecting I/O modules:
■ You can configure several I/O modules of the same type
■ Any combination of I/O modules can be inserted but only PoE I/O modules
provide the features of power over Ethernet.
Tabl e 14 4-Port 10/100/1000BASE-T Submodule LEDs
LED Description
LINK Off — The link is not operating.
On — The link is operating normally.
ACT Off — No data is being transmitted or received.
Green flashing — Data is being transmitted or received.
Tabl e 15 4-Port 10/100/1000BASE-T Submodule Specifications
Specification Description
Connector type RJ-45
Number of ports 4
Port speed 1000 Mbps full duplex
100 Mbps half/full duplex
10 Mbps half/full duplex
MDI/MDI-X auto-sensing
Cable and maximum
transmission distance
Category 5 twisted pair up to 100 m (328 ft)
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