Westermo GDW-11 - Manual (Page 9)

9 6615-2203
12
12
34
1234
Ratings and safety control drawing, GDW-11 485 EX
Power (12 – 48) VDC; 350 mA
Ambient temperature –25ºC ≤ Ta ≤ +50ºC
Maximum surface temperature Temperature class T4 (max 135ºC )
Ingress protection (IP)
IP21
Installation spacing Minimum 25 mm above / below and minimum 10 mm
left / right
Antenna
Position Direction / description Input / Output values
1 In/out / RF signal Max RF power: 2 watt
Data rate:
CSD: up to 14.4 kbit/s
GPRS: up to 85.6 kbit/s
Shield Signal ground
RS-232 (DB9, female)
Position Direction / description Input / Output values
1 Out / Data Carrier Detect (DCD)
U
max
= ± 12 Vpk
I
max
= ± 60 mA
Data rate:
300 bit/s to 115.2 kbit/s
2 Out / Received Data (RD)
3 In / Transmitted Data (TD)
4 In / Data Terminal Ready (DTR)
5 – / Signal Ground (SG)
6 Out / Data Set Ready (DSR)
7 In / Request To Send (RTS)
8 Out / Clear To Send (CTS)
9 Out / Ring Indicator (RI)
RS-422/485 (4-pin screw terminal)
Position Direction / description Input / Output values
1 In / R+ (RS-422/485 4-wire)
U
max
= ± 12 Vpk
I
max
= ± 60 mA
Data rate:
1200 bit/s
to 115.2 kbit/s
2 In / R– (RS-422/485 4-wire)
3
Out / T+ (RS-422/485 4-wire)
In/Out / T+ (RS-485 2-wire)
4
Out / T– (RS-422/485 4-wire)
In/Out / T+ (RS-485 2-wire)
Position Description Input values
1 In / –VDC
U
in
= (10 – 60) VDC
Max I
in
= 0.4A @ 10 VDC
Max P
In
= Max 4 W
2 In / +VDC
Galvanically isolated via power transformer and optocoupler.
Capacitively isolated via 4700 pF capacitator rated 300 Vrms.