INSTALLATION
3 - 4
I-E96-225A
®
JUMPERS J1 THROUGH J3
Jumpers J1, J2 and J3 enable the handshake functions for the
DB-25 computer port (P4) and must be set to match the equip-
ment used. The IMCPM03 module is shipped with these jump-
ers installed for +12 VDC (logic 0). Removing the jumpers
allows the signals to float and may prevent the IMCPM03 mod-
ule from communicating with the LAN-90 PCV console or EWS
station.
These jumpers provide an additional layer of communication
integrity. They enable the transmitting device to send a notice
to the receiving device that a message is being sent. The mes-
sage is sent when the receiving device replies to the request.
These jumpers should remain in place for normal operation.
They are provided for applications requiring special communi-
cations.
Figure 3-2. Schematic Diagram of Jumpers J1 through J5
J5
1
2
3
4
5
6
7
8
9
10
11
12
TXD-A
RXD-A
RTS-A
CTS-A
RXD
TXD
RTS
CTS
DB25-5
DB25-20
DB25-1
3
3
3
2
1
2
1
2
1
+12 VDC
J1
J3
J4
TP36053A
.
DSR
DTR
PROT-GND
GND
ACOMM
J1, J2, J3, J4
DB25-6
3
2
1
J2
DCD
DB25-8
DB25-7
DB25-3
DB25-2
DB25-4
