Westermo MRD-350 - Manual (Page 10)

10 6623-2221
Interface specifications
Power
Rated voltage
12 – 48 VDC
Operating voltage 10 – 60 VDC
Rated current (max) 370 mA @ 12 VDC
Start-up current (max) 1000 mA @ 12 VDC
Rated frequency DC
Consumption guidance* Voltage Mode Consumption
12 VDC GPRS Idle 165 mA
24 VDC GPRS Idle 90 mA
48 VDC GPRS Idle 55 mA
12 VDC GPRS Send 240 mA
24 VDC GPRS Send 130 mA
48 VDC GPRS Send 75 mA
12 VDC 3G Idle 225 mA
24 VDC 3G Idle 120 mA
48 VDC 3G Idle 70 mA
12 VDC 3G Send 275 mA
24 VDC 3G Send 155 mA
48 VDC 3G Send 80 mA
12 VDC 3G Send&Receive 330 mA
* For example purpose only. Hard to predict exact values since there are a lot of factors that affect the power
consumption, such as signal strength. Example measurement was carried out in-doors in a 25ºC room with
"normal" signal strength.
RS-232
Electrical specification
EIA RS-232
Data rate 300 bit/s – 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits
Protocol Transparent, optimised by packing algorithm
Circuit type SELV
Transmission range 15 m / 49 ft
Connection 9 pin D-sub female
Shielded cable Not required
Conductive housing Yes
Number of ports 1