Westermo ODW-620-F1 - Manual (Page 11)

11 6651-22621
Status
Port type Signal relay, changeover contacts
Rated voltage Up to 48 VDC
Operating voltage Up to 60 VDC
Contact rating 500 mA @ 48 VDC
Contact resistance < 50 mW
Isolation to RS-232 and Power port
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm² (AWG 24 – 12)
Shielded cable Not required
* External supply current capability for proper startup
Interface specifications
Power
Rated voltage 12 to 48 VDC
24 VAC
Operating voltage 10 to 60 VDC
20 to 30 VAC
Rated current 300 mA @ 12 V
150 mA @ 24 V
75 mA @ 48 V
Rated frequency DC: –
AC: 48 to 62 Hz
Inrush current I²t 0.2 A²s
Startup current* 1.0 Apeak
Polarity Reverse polarity protected
Redundant power input Yes
Isolation to RS-232 and Status port
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm² (AWG 24 – 12)
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.
RS-232
Electrical specification EIA RS-232
Data rate 300 bit/s – 250 kbit/s
Transmission range 15 m
Isolation to Status and Power port
Connection 9-pin D-sub female (DCE)
Shielded cable Not required, except when installed in railway applications as
signalling and telecommunications apparatus and located close
to rails*
Conductive housing Isolated to all other circuits and housings