Westermo MD-45 - Manual (Page 20)

20 6157-2003
4. Specifications
4.1 Interfaces
RS-485/422
Electrical specification
RS-422/485
Data rate 1 200 – 115 200 bit/s
Connection 5-pos screw block
Connector size 0.2 – 2.5 mm² (AWG 24-12)
Circuit type TNV-1
RS-232
Electrical specification
RS-232-C
Data rate 1 200 – 115 200 bit/s
Connection 9-pos D-sub, DCE
Circuit type SELV
4.2 Insulation between interfaces
Power
(MD-45 HV and AC)
to all other
3.0 kV RMS @ 50 Hz and 60 s duration
Power
(MD-45 LV)
to all other
1.0 kV RMS @ 50 Hz and 60 s duration
RS-232 to RS-485/422 1.0 kV RMS @ 50 Hz and 60 s duration
Model description MD-45 AC MD-45 LV MD-45 HV
Rated voltage 230 VAC 12–30 VAC 95–240 VAC
12–48 VDC 110–250 VDC
Operating voltage 207–253 VAC 10–45 VAC 85.5–264 VAC
9,6–60 VDC 88–300 VDC
Rated currant 22 mA 300 mA 25 mA @ 240 V,
50 mA @ 95 V
Rated frequency 48–62 Hz 48–62 Hz 48–62 Hz
Polarity PE, L and N Independent PE, L and N
Connection 3-pos screw block 2-pos screw block 3-pos screw block
Connector size 0.2 – 2.5 mm² (AWG 24-12)
Fuse To be externally fused
Power