Connector Pinout

Connector Panel Layout

Miniature cylindrical connector layout

Connector Pinout

The chart below shows the pinout for each of the connectors in the above figure. Note the relative position of the items in the chart below matches the relative positions of the associated connector on the panel above.

POWER

Pin	Function
A	DC V+ / AC Line 1
B	DC V- / AC Line 2
C	CASE GND

COM 1

Pin	Function
A	232 Rx
B	232 Tx
C	232 RTS
D	232 CTS
E	Ground
F	485 Tx/Rx+ or 422 Tx+
G	485 Tx/Rx- or 422 Tx-
H	422 Rx+
J	422 Rx-
K	Ground

A IN 2, 3

Pin	Function
A	A_IN2+
B	Ground
C	V_AUX+
D	A_{IN 2-}
E	A_IN3+
F	Ground
G	V_AUX+
H	A_{IN 3-}

COM 2

Pin	Function
A	485 Tx/Rx+ or 422 Tx+
B	485 Tx/Rx- or 422 Tx-
C	422 Rx+
D	422 Rx-
E	Ground

A IN 1

Pin	Function
A	A_IN1+
B	Ground
C	V_AUX+
D	A_{IN 1-}
E	Ground
F	Ground

A OUT 1

Pin	Function
A	A_OUT1+
B	A_OUT1-
C	V_AUX+
D	Ground

A OUT 2

Pin	Function
A	A_OUT2+
B	A_OUT2-
C	V_AUX+
D	Ground

ALARMS (Standard Relay Board Only)

Pin	Function
J	1 N.C.*
K	1 COMM*
G	1 N.O.
H	2 N.C.
L	2 COMM*
M	2 N.O*
A	3 N.C.
B	3 COMM
C	3 N.O.
D	4 N.C.
E	4 COMM
F	4 N.O

ALARMS (Enhanced Relay Board Only)

Pin	Function
J	3 COMM (+ DC)**
K	3 N.O. (- DC)**
G	2 COMM (+ DC)
H	2 N.O. (- D.C.)
L	5 COMM (+ D.C.)**
M	5 N.O (-D.C.)**
A	1 N.C.
B	1 COMM
C	1 N.O.
D	4 N.C.
E	4 COMM
F	4 N.O

DIG IO

Pin	Function
A	D_O1+
B	D_O1-
C	D_O2+
D	D_O2-
E	D_UI1+
F	D_UI1-
G	D_UI2+
H	D_UI2-
J	D_I1+
K	D_I1-
L	D_I2+
M	D_I2-
N	D_I3+
P	D_I3-
R	D_I4+
S	D_I4-
T	D_I5+
U	D_I5-
V	D_I6+
W	D_I6-
X	D_I7+
Y	D_I7-
Z	D_I8+
a	D_I8-
b	V_AUX+
c	Ground

NOTES for the ALARMS Connector
* Denotes connector pins support a 4 amp carrying capacity; remaining pins are 1.5 amp.
** Denotes connector pins support a 3 amp carrying capacity; remaining pins can carry 1.5 amps.

The current limit for the ALARM circuit may be smaller depending on the type of relays ordered. Reference the Mechanical and Solid State Relay Output Interface sections for more information.

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