ANALOG INPUT MODULE
Page 2
April 15, 1997
5) Grounding the Enclosure and Circuit Board.
Grounding is essential for proper operation and
protection of the AIM and safety of the user. Refer to
Figure 2 below for grounding connections.
Crimp
Eyelet
Case or
Conduit Ground
Crimp
Eyelet
s
AIM
Ground
Terminals
AIM
Circuit
Board
12 AWG
Stranded
20 feet
Max.
IPONI
Figure 2 Grounding Connections
Locate the hole drilled into the enclosure cover. Attach a
crimp eyelet on the inside of the cover using the 1/4”
screw and nut. Connect one of the grounding wires to
the crimp eyelet and crimp tight. Locate the hole drilled
on the upper right-hand wall inside the enclosure. Attach
the remaining crimp eyelets on the interior side of the
wall using a 1/4” screw and nut. Connect the grounding
wire attached to the enclosure door to one of the crimp
eyelets on the inside wall. Connect a grounding wire
from a free crimp eyelet on the inside wall to an
available ground terminal (terminals 41-72). Attach the
remaining crimp eyelet of the inside wall to a suitable
ground source, such as case ground for electrical
enclosures and conduit.
6) Wiring Connections and Features. Figure 3
shows the wiring connections (other than grounding
connections) and major features of the AIM. Wiring
connections include 24VAC power, channel input
terminals 1-32, channel ground terminals 41-72,
auxiliary terminals and communication connections.
Channel grounds are electrically common (non-
isolated). Auxiliary terminals are as indicated below:
40
37
39
38
36
35
33
34
80
77
79
78
76
75
73
74
+ 8 VDC
+ 8 VDC
+ 8 VDC
+ 24 VDC
+ 24 VDC
+ 24 VDC
Contact 1B
Contact 2B
+ 8 VDC
+ 8 VDC
+ 8 VDC
+ 24 VDC
+ 24 VDC
+ 24 VDC
Contact 1A
Contact 2A
Other features include a 1.5A 250V fuse (5mm x
20mm), LED indicators and system test pushbutton.
Aux.
Terminals
Network
Connection
24VAC
Connector
Channel 1
Channel 32
Logic
Power
24VDC
Power
Status
System Test
1.5A
250V
Fuse
Channel
Input
Terminals
(upper)
IPONI Ribbon
Cable Connector
IPONI 3-Pin
Connector
Shield
Newtork
8VDC
Power
Channel
Ground
Terminals
(lower)
3
2
1
Figure 3 Wiring Connections and Features
7) Communication Connections. Power must be
disconnected from the AIM before making
communication connections. Failure to disconnect
power may result in electrical shock and/or damage to
the AIM and IPONI.
As shown in Figure 4 there are two connections from the
IPONI to the AIM, and a network connection to the AIM.
Plug the 3-terminal Phoenix connector with pre-wired
cable into the IPONI and plug the other end of the cable
into the 3-pin connector at the bottom left corner of the
AIM. Plug the DB9 ribbon cable connector into the AIM.
Connect the network communication wires to the
network connector at the bottom right corner of the AIM
as shown. The shield is “floating”, or not grounded at the
AIM.
Network
Connection
IPONI Ribbon
Cable Connector
(DB9)
3-Pin
Connector
Green Phoenix
Connector with
Pre-wired Cable
Network
Shield
IPONI
AIM Circuit
Board
Floating Shield
Network
3
2
1
Figure 4 Communication Connections