4RF Aprisa XE User Manual - page 225
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User Manual
Manual is about: 4RF Aprisa XE fixed point-to-point digital radio link
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272
Interface connections | 224
X.21 Serial Cable Assembly for DTE (Part number: Cab Sync X21MT)
Pin number
Pin function
Direction
1 Shield
Ground
-
2
9
Transmit+
Transmit-
Input
Input
3
10
Control+
Control-
Input
Input
4
11
Receive+
Receive-
Output
Output
5
12
Indication+
Indication-
Output
Output
6
13
Timing+
Timing-
Output
Output
8 Circuit
Ground
X.21 Serial Cable Assembly for DCE (Part number: Cab Sync X21FC)
Pin number
Pin function
Direction
1 Shield
Ground
-
2
9
Transmit+
Transmit-
Output
Output
3
10
Control+
Control-
Output
Output
4
11
Receive+
Receive-
Input
Input
5
12
Indication+
Indication-
Input
Input
6
13
Timing+
Timing-
Input
Input
8 Circuit
Ground