Westermo MRD-350 - Manual (Page 11)

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Ethernet TX
Electrical specification
IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s, 100 Mbit/s, manual or auto
Duplex Full or half, manual or auto
Circuit type SELV
Transmission range 100 m / 328 ft
Isolation to All other
Connection RJ-45 auto MDI/MDIX
Shielded cable Not required, except when installed in Railway applications as signalling
and telecommunications apparatus and located close to rails.*
Conductive housing Yes
Number of ports 1
* 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 (360º) 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.
Antenna
Frequency bands
GSM / GPRS / EDGE 850 / 900 / 1800 / 1900 MHz
3G / HSDPA / HSUPA / HSPA 850 / 900 / 2100 MHz
Main Antenna (TX / RX) Antenna connector labeled ANT
Optional Antenna* (RX only) Antenna connector labeled AUX, receive diversity
Connection SMA female, impedance: 50 ohm
* Please note that the unit will be fully functional without the optional-antenna (AUX). However, for locations
where the signal strength is poor connecting the AUX-antenna may improve the receive signal strength.
SIM
Electrical specification
3 volts SIM supported
Number of slots 2