Broadata Communications 272E Series - Manual (Page 13)

BCI 272E User’s Manual
Digital Fiber Optic Video/Audio/Data Transport System
Broadata Technical Support, (800) 214-0222 14
Figure 2-7
Pin Connections Between 272E and User’s RS-422 Device
1 Not Used
2 Not Used
3 Not Used
4 Not Used
5 Signal Ground 6 TX +
7 TX -
8 RX +
9 RX -
Pin Name Pin Name
Differential
Transmit Data
Differential
Receive Data
1 2 3 4 5
6 7 8 9
DTE
(User’s RS-422 unit)
DCE
(BCI 272E unit)