H3C Technologies H3C MSR 50 - Manual (Page 214)

4-19
Interface LEDs
The following figure illustrates the FIC-1AT3 panel:
Figure 4-23 FIC-1AT3 panel
The following table describes the LEDs on the FIC-1AT3 panel.
Table 4-18 LEDs on the FIC-1AT3 panel
LED Description
LINK
z
OFF means no link is present;
z
ON means a link is present.
ACT
z
OFF means no data is being transmitted or received;
z Blinking means data is being received or/and transmitted.
Interface cable
The interface that the FIC-1AT3 provides uses two SMB sockets for data transmitting and receiving
respectively. The ports adopt the 75-ohm unbalanced transmission mode and are connected to the
peer device using a pair of 75-ohm unbalanced coaxial cables as shown in
Figure 4-22 . Several cable
length options are available.
The FIC-1AT3 and FIC-1AE3 modules use the same type of cables for connection, which are called
E3/T3 cables in this manual.
Connecting the interface cable
By design, the FIC-1AT3 is protected against lightning strikes. But when outdoor cabling is involved,
you are recommended to add a special lightning arrester at the input end of the E3/T3 cable for better
protection.
Step1 Connect the SMB connector of an E3/T3 cable to the Tx port on the FIC-1AT3 and another end to the
Rx port on another device.
Step2 Connect the SMB connector of another E3/T3 cable to the Rx port on the FIC-1AT3 and another end
to the Tx port on another device.