Honeywell ESSER Serial essernet Interface SEI1 - Interface Module TTY; CL 20 Ma (Part No. 772387)

Serial essernet
®
interface (SEI1)
60 FB 798819 / 05.18
10.4.1 Interface module TTY / CL 20 mA (Part No. 772387)
RxD
TxD
+
-
+
-
Tx+
Tx-
Rx+
Rx-
External device
Interface
module
max. 1000m
Fig. 14: Wiring schematic
• Line length between the external unit and the interface module should not
exceed max. 1000 m.
• Observe permitted torque (max. 0.4 Nm) of the terminals!
Solder jumper for TTY mode
The solder jumper on the rear side of the SEI1 must be closed for TTY operation.
Solder jumper
closed : TTY interface module
open: RS232/V.24 interface module (default)
Fig. 15: Rear side SEI1 / Position of solder jumper