Westermo IDW-90 - Manual (Page 14)

14 6620-2200
RS-232
Electrical specification
EIA/TIA-232
Data rate 1 200 bit/s – 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits;
Σ 9 – 12 bits
Protocol Transparent
Retiming Yes
Transmission range Cable length ≤15 m
Isolation to Power port 3 kV
rms
50 Hz 1 min
ISDN line 2 kV
rms
50 Hz 1 min
I/O 1.5 kV
rms
50 Hz 1 min
Galvanic connection to RS-485
Connection 9-pin D-sub female (DCE)
Shielded cable Not required*
Miscellaneous Do not connect RS-232 and RS-422/485 simultaneously
Generic I/O Input
Electrical specification
Opto isolated input
Input voltage range 0 – 60 VDC
Input current 5mA @ 60 VDC
Input inactive
Input active U
in
<2.5 V
U
in
>5.0 V
Transmission range Cable Length ≤ 15 m
Connection Detachable screw terminal (DCE)
Connector size 0.2 – 2.5 mm 2 (AWG 24 – 12)
Isolation to Power port 3 kV
rms
50 Hz 1 min
ISDN line 2 k
Vrms
50 Hz 1 min
RS-232 2 kV
rms
50 Hz 1 min
RS-485 2 kV
rms
50 Hz 1 min
I/O output 2 kV
rms
50 Hz 1 min
Shielded cable Not required*
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port.
This earthing point should have a low impedance connection to the conductive enclosure of the apparatus
cabinet, or similar, where the unit is built-in. This conductive enclosure should be connected to the earthing
system of an installation and may be directly connected to the protective earth.