3com MSR 20 Manual De Usuario

For modular MSR series routers, a wide range of optional flexible interface 
cards/double flexible interface cards (FICs/DFICs) 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 this series interface cards, the Layer 2 switching interface cards 
(FIC-16FSW and DFIC-24FSW) each have a corresponding PoE-capable one, which 
can provide -48 VDC power to remote PDs (such as IP phone, WLAN AP, and 
network camera) through straight-through network cables as long as installed on 
a PoE router.

The 1-port, 2-port, and 4-port 10Base-T/100Base-TX fast Ethernet interface cards 
(FIC-1FE, FIC-2FE, and FIC-4FE) are mainly used for the communication between 
router and LAN.

The cards support:

■

100 meters (328.1 ft.) of transmission segment over the category-5 
twisted-pair cable.

■

Operation at 100 Mbps and 10 Mbps, autosensing.

■

Full duplex and half-duplex, with the former in common use.

The following table describes the interface attributes of the 
FIC-1FE/FIC-2FE/FIC-4FE cards.

Table 102   FIC-1FE/FIC-2FE/FIC-4FE interface attributes

Connector RJ-45 

Number of connectors 

1 

2 

4 

Cable Straight-through 

Ethernet 

cable 

Operating mode 

Full duplex/half-duplex

10/100 Mbps auto-sensing 

Supported frame format 

Ethernet_II

Ethernet_SNAP