INSTALLATION
WIRING CONNECTIONS AND CABLING
WBPEEUI240752A0
3 - 7
WIRING CONNECTIONS AND CABLING
The DSI has three card edge connectors to supply logic power,
establish I/O expander bus communication and provide digital
inputs (P1, P2, P3 respectively).
Wiring
Installing the module in the MMU connects the digital input
module to the logic power (+5 VDC), necessary to drive the cir-
cuitry, at P1. It also connects P2 to the I/O expander bus for
communication with the control module. P1 and P2 connec-
tions require no additional wiring or cabling.
NOTE: You must install a dipshunt on the backplane of the MMU to
connect the I/O expander bus between the digital input module and
control module. Locate the modules so the bus can connect the
modules or they will not communicate.
Cable Connections
The IMDSI1
digital input module can use either a NTDI01
termination unit or an NIDI01 termination module for termi-
nation. Refer to Figure
to determine the cables to use with
the TU or TM.
FUSING
The IMDSI1
digital input module does not have any on board
fusing requirements.
Figure 3-3. Cable Connections and Termination
IMDSI1
T00105A
P1
P1
P3
P1
P3
P1
P2
P2
NKTM01/02
OR
NKTU02/12
NIDI01
IMDSI1
NTDI01
NKTU01/11
16 DIGITAL FIELD INPUTS
(24/48/125 VDC OR 120 VAC)
16 DIGITAL FIELD INPUTS
(24/48/125 VDC OR 120 VAC)