User guide

39
6615-2203
… GDW-11 485, two wire half duplex
In this application the GDW-11 485 is set to communicate with a number of units with
RS-485 interface. The communication is 2 wire half duplex at 38 400 bit/s.
GDW-11 485
Te rmination
1
2
3
4
GSM
Network
Configure the GDW-11 485
AT+CPIN=xxxx If PIN code required
AT&F Set the unit to factory default
AT&W Store default settings
S1:4 ON Select 2-wire RS-485 half duplex
S2:1,2 ON Termination / Failsafe active
S3:1,3 ON 38.4 kbit/s
To make switch setting active the power must be cycled from OFF to ON.