3Com MSR 30, MSR 20, MSR 50 manual Following figure shows the FIC-8SAE panel, Act

156 CHAPTER 4: FLEXIBLE INTERFACE CARDS

Table 110 LEDs on the FIC-2SAE/FIC-4SAE panel

LED	Description
ACT	OFF means no data is being
	transmitted or received. Blinking
	means data is being transmitted
	and/or received.

The following figure shows the FIC-8SAE panel:

Figure 180 FIC-8SAE front panel

On the FIC-8SAE panel, each link corresponds to a LED. ON means a link is present; blinking means data is being transmitted and/or received.

Interface Cable The FIC-SAE cards use synchronous/asynchronous serial interface cables with DB-28 connectors.

Before connecting an FIC-SAE card, identify the line properties and then select the proper interface cable from the following ten cable options:

■V.24 (RS232) DTE cable: DB-25 plug at the network end

■V.24 (RS232) DCE cable: DB-25 receptacle at the network end

■V.35 DTE cable: 34PIN plug at the network end

■V.35 DCE cable: 34PIN receptacle at the network end

■X.21 DTE cable: DB-15 plug at the network end

■X.21 DCE cable: DB-15 receptacle at the network end

■RS449 DTE cable: DB-37 plug at the network end

■RS449 DCE cable: DB37 receptacle at the network end

■RS530 DTE cable: DB-25 plug at the network end

■RS530 DCE cable: DB25 receptacle at the network end

All these cables use a DB-28 connector to connect the router, but the connector at the network end varies with the type of the to-be-connected network.

■V.24 DTE cable