H3C Technologies H3C MSR 50 - Manual (Page 250)

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LED Description
ACT
z OFF means no data is being received or transmitted.
z
Blinking means data is being received and/or transmitted.
Interface cable
The FIC-4BSE uses straight-through ISDN S/T cables, with pins 3 and 6 for data transmission, and pins
4 and 5 for data receiving. At both ends of ISDN S/T cable are RJ-45 connectors.
Figure 4-67 Straight-through ISDN S/T cable
GreenYellow
RedBlack
Yellow
Green
Black
Red
GreenYellow
RedBlack
Yellow
Green
Black
Red
GreenYellow
RedBlack
Yellow
Green
Black
Red
GreenYellow
RedBlack
Yellow
Green
Black
Red
The standard equipping package for the FIC-4BSE includes the appropriate interface cables.
Connecting the interface cable
If outdoor cabling is involved, consider to install a special lightning arrester at the input end of the
interface cable for better lightning protection.
Before you connect a port, read its label carefully; a wrong connection can cause damages to the
interface module and even the device.
Step1 Identify the to-be-connected port on the FIC-4BSE.
Step2 Identify the type of the ISDN line provided by your telecommunications service provider.
Step3 Connect the cable.
z
For an ISDN U interface line, adapt the interface with an NT1 by inserting one end of the S/T
interface cable into the S/T port on the NT1 and the other end to the BRI port on the FIC-4BSE.
z
For an ISDN S/T interface line, directly connect the cable to the BRI port on the FIC-4BSE.
Serial Interface Module
z
FIC-2SAE
z
FIC-4SAE
z
FIC-8SAE
z
FIC-8ASE
z
FIC-16ASE