889-2106-03
Model U-1400 Operations Manual Rev Apr 2020 Page
12
of 39
Primary Interface Connector
Functional Pin Assignments
Pin
Function
Pin
Function
H
12 VDC + (Non-isolated)
m
Channel 2 Primary Vital Output -
n
Channel 1 Auxiliary Vital
f
Channel 3 Primary Vital
p
Channel 1 Auxiliary Vital Output -
K
Channel 3 Primary Vital Output -
z
Channel 2 Auxiliary Vital
h
Channel 4 Primary Vital
k
Channel 2 Auxiliary Vital Output -
g
Channel 4 Primary Vital Output -
L
Channel 3 Auxiliary Vital
q
Channel 1 Vital Input +
M
Channel 3 Auxiliary Vital Output -
B
Channel 1 Vital Input -
e
Channel 4 Auxiliary Vital
C
Channel 2 Vital Input +
J
Channel 4 Auxiliary Vital Output -
W
Channel 2 Vital Input -
N
Channel 1 Check Loop Input
y
Channel 3 Vital Input +
u
Channel 1 Check Loop Input
Y
Channel 3 Vital Input -
P
Channel 2 Check Loop Input
r
Channel 4 Vital Input +
i
Channel 2 Check Loop Input
s
Channel 4 Vital Input -
R
Channel 3 Check Loop Input
EE
Chassis Ground
j
Channel 3 Check Loop Input
G
DC Common (Non-isolated)
d
Channel 4 Check Loop Input
Z
Reset
v
Channel 4 Check Loop Input
X
Synch In
S
Channel 1 Loop Input
c
Synch Out
T
Channel 1 Loop Input
AA
No Connection
U
Channel 2 Loop Input
CC
No Connection
V
Channel 2 Loop Input
DD
No Connection
D
Channel 3 Loop Input
GG
No Connection
E
Channel 3 Loop Input
HH
No Connection
F
Channel 4 Loop Input
a
Reserved
b
Channel 4 Loop Input
t
Reserved
FF
Channel 1 Primary Vital
w
Reserved
A
Channel 1 Primary Vital Output -
x
Reserved
BB
Channel 2 Primary Vital
AUX PORT (DB-15 External EEPROM Connector)
Pin
Function
1
No Connection
2
No Connection
3
No Connection
4
No Connection
5
No Connection
6
No Connection
7
I
2
C DC +
8
I
2
C Clock
9
No Connection
10
No Connection
11
No Connection
12
No Connection
13
No Connection
14
I
2
C Common
15
I
2
C Data
