User Manual, MAR-5915-2x
User Manual
Chapter 3 Connector and LED
Descriptions
MNL-0655-01 Rev A6
ECO-5592
Effective: 05 Feb 19
Page 29 of 40
J6 ETH/CON Pinouts
J6 has one Gigabit Ethernet port and one serial console port on its own circular connector. Four distinct
twisted pairs of wire (eight wires) are required for gigabit transmission, and this documentation refers to
these four pairs as pair Ax (Ax+, Ax-), pair Bx (Bx+, Bx-), pair Cx (Cx+, Cx-), and pair Dx (Dx+, Dx-). The
serial console communication is contained in the J6 connector (J6-9 through J6-13).
Caution! Do not connect to both console ports at the same time.
J6 Console and J9 Console are the same port. Connecting to both ports will result in an electrical
conflict on both connections.
This is a rear view. The connector on the
DuraMAR 5915 front panel (socket side) appears as an
exact mirror of the picture on the left.
Note: J6 on MAR-5915-2x is functionally and electrically equivalent to J1 on DuraNET 30-2020
but it is keyed differently. Therefore you cannot use the same interface cable for both systems.
J6 Pin
Signal
1
2
GE1_Ax-
3
4
GE1_Bx-
5
6
GE1_Cx-
7
8
GE1_Dx-
9
RTS_OUT
10
TXD_OUT
11
GND
12
RXD_IN
13
CTS_IN
