3com MSR 20 Manual Do Utilizador

For the modular MSR series routers, a wide range of optional MIM/DMIM 
multifunctional interface modules are available, which provide abundant 
interfaces, such as synchronous/asynchronous serial interface, Ethernet interface, 
E1/T1, ISDN BRI/PRI, audio interface, Layer 2 switching interface, and so on.

Among the Layer 2 switching interface cards, neither the XMIM-16FSW nor the 
XMIM-24FSW supports the PoE function, while the MIM-16FSW and the 
DMIM-24FSW support the PoE function to provide -48 VDC power to remote PDs 
(such as IP phone, WLAN AP, network camera) through straight-through network 
cables as long as installed in a PoE router.

1/2/4-port 10/100Base-TX Fast Ethernet interface module 
(MIM-1FE/MIM-2FE/MIM-4FE) serves to complete communications between 
routers and LANs.

FE modules support:

■

Effective transmission distance of 100 meters with category-5 twisted pair 
cables;

■

Operating speeds of both 100 Mbps and 10 Mbps and autosensing;

■

Both full duplex (in common use) and half-duplex operating modes.

The interface attributes of MIM-1FE/MIM-2FE/MIM-4FE are given in the following 
table:

Table 37   Interface attributes of MIM-1FE/MIM-2FE/MIM-4FE

Connector RJ-45 

Type of interface 

MDI 

Number of connectors 

1 

2 

4 

Cable type 

Straight-through Ethernet cable 

Operating mode 

Full duplex/ half-duplex

10/100 Mbps autosensing