MetCam Technical Manual
2
The following table shows which pin of the RJ45 connector, at the PC side, is connected to which terminal block socket
on the MetCam side. It is important to maintain this connection scheme. Failing to do so will reduce, or altogether
eliminate, the communication bandwidth.
RJ45 connector pin assignment
Terminal block, as seen after opening MetCam back cover
1
MetCam terminal block socket assignment (all functions)
Pin Marking on
Terminal Block
Description
1
Voltage input + Max 32 V
2
Voltage input -
3
(4-
20 mA & HART™) Negative
4
(4-
20 mA & HART™) Positive
5
RS485 - Y
6
RS485
– Z
7
Gigabit Ethernet Bi-Directional Data 2 -
8
Gigabit Ethernet Bi-Directional Data 2 +
9
Gigabit Ethernet Bi-Directional Data 1 -
10
Gigabit Ethernet Bi-Directional Data 1 +
11
Gigabit Ethernet Receive Data -
12
Gigabit Ethernet Receive Data +
13
Gigabit Ethernet Transmit Data -
14
Gigabit Ethernet Transmit Data +
Pair No
RJ45 Pin number
Color coding of Ethernet pairs
Terminal Block socket number
1
5
Blue white
9
4
Blue
10
2
1
Orange / white
14
2
orange
13
3
3
Green / white
12
6
Green
11
4
7
Brown / White
8
8
Brown
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