Gill Instruments Limited
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MetStream 100
Page 14
Issue 2
Doc. No. 1955-PS-001
March 2016
5.1.5
Power supplies
MetStream 100 units
Input Supply: -
Voltage
9v to 30v DC.
Current
145mA max@12v DC (excludes external USB flash drive
and externally connected sensor.
Current
500mA max@12v DC including external Sensor.
5.1.6
Power over Ethernet Connection.
It is possible to Supply Power to a MetStream 100 and connected MetPak unit for instance
through the use of a Single Port MidSpan PoE Injector.
Typically the Power over Ethernet device will inject 48v dc on the Ethernet cable to
connect to the MetStream 100 unit.
Typical 48v current capacity should be 350mA.
Maximum cable length between The POE injector and MetStream should be 100 Metres
Connect MetStream Ethernet lead to the Power and Data connection socket.
Typical MetStream System Connection using Power over Ethernet.
Connections
5.2
Important:- Any cable wires not used should be isolated and grounded at the
terminating equipment/user end.
Digital OV should be used in conjunction with RS422 TX RX lines in order to improve
noise immunity.
Earthing or grounding
It is recommended that MetStream metal case is grounded via its Knurled Screw Earth
Terminal.
