Interface specifications – Westermo DDW-100 User Manual
Page 10
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Interface specifications
Power
Rated voltage
12 to 48 VDC
Operating voltage
10 to 60 VDC
Rated current
290 mA @ 12 VDC
140 mA @ 24 VDC
80 mA @ 48 VDC
Rated frequency
DC
Inrush current, I
2
t
0.098 A
2
s
Startup current
0.6 A
peak
Polarity
Reverse polarity protected
Redundant power input
Yes
Isolation to
All other
Connection
Detachable screw terminal
Connector size
0.2 – 2.5 mm
2
(AWG 24 – 12)
Shielded cable
Not required
DSL Leased Line
Electrical specification
ITU-T G.991.2 Annex B
Data rate
192 kbit/s to 2.304 Mbit/s
Protocol
ITU-T G.991.2, Annex E Clear Channel Data
Transmission range
According to ITU-T G.991.2 depending on the line quality:
Typical values using noise-free AWG26 Cables
2.3 Mbit/s reach > 3 km
192 kbit/s reach > 6 km
Protection
Bidirectional transient surge arrestor
Isolation to
All other
Galvanic connection to
None
Connection
Detachable screw terminal and RJ-12
Connector size
0.2 – 2.5 mm
2
(AWG 26 – 12)
Shielded cable
Not required
Conductive housing
No
Number of ports
1