Emerson 110V, User Manual, Page: 16 / 31

Chapter 1 - General Description User Manual
N N e e t t w w o o r r k k P P o o w w e e r r S S w w i i t t c c h h
Page 1-6
1.6 Potential free contacts
The Network Power Switch status can be checked with the 37-pin D-type connector, located on the rear end. This is a
potential free contact, and gives following indications as shown in Table 1-1 –
Table 1-1
The pin details for this connector is shown in fig 1.6
Two potential free contacts indicating Source 1 and Source 2 Healthy conditions are taken from this 37 pin D type
connector and terminated at rear terminal connectors, as shown in figure 1.7.
Fig 1.6 – Pin details for 37 pin D-type Connector
Fig 1.7 – Potential free contacts Connectors
19 18 37 36 35 17 Unsynch
19 34 16 15 14 33 S2 Feed
19 13 32 31 30 12 S2 Healthy
19 29 11 10 9 28 S1 Healthy
19 8 27 26 25 7 S1 Feed
19 24 6 5 4 23 Priority
19 21 3 2 1 20 Overload
Common NO NC Common NO NC
Termination available of 37 pin D-type connector Status
19 18 37 36 35 17 Unsynch
19 34 16 15 14 33 S2 Feed
19 13 32 31 30 12 S2 Healthy
19 29 11 10 9 28 S1 Healthy
19 8 27 26 25 7 S1 Feed
19 24 6 5 4 23 Priority
19 21 3 2 1 20 Overload
Common NO NC Common NO NC
Termination available of 37 pin D-type connector Status
1 2 19 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
20 37 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
52 50 51
Pin Details
50 – S2 Healthy
51 – S1 Healthy
52 - Common
O
/p L
ine
Input Fuse 1
Input Fuse 2
Rear View
N
eutr
al
-
2
N
eutr
al
-
1
I/p L
ine
-
2
I/p L
ine
-
1
Co
m
m
on
S
2 H
eal
th
y
S
1 H
eal
th
y
Co
m
m
on
S
2 H
eal
th
y
S
1 H
eal
th
y
52 50 51
POTENTIAL
FREE CONTACTS