EMR3 Truck Installation
Installing the Interconnection Box (IB)
29
Table 7.- Power Side Wiring for IB Box
Input
Terminal Label
Input Power
Ground
V+
Gen. Purpose
GP-IN
GP-OUT
Pulse Voltage Selector
Input V
5V Out
12V Out
24V Out
Switch Inputs
(see note at left)
Ground
Stop DH1
Start DH1
Ground
Ground
Stop DH2
Start DH2
Start Pulse DH1
Ground
SP1
Start Pulse DH2
Ground
SP2
Pulse Output DH1
Ground
POUT-1
Pulse Output DH2
Ground
POUT-2
IB Network
RS-485 B
RS-485 A
Ground
RS-232 Serial Port
(Port 2)
RX
TX
Ground
Printer Interface
(Port 1)
Ground
Power
PRN-RX
PRN-TX
Display Head
No. 1
Relay
2
COM
N.O.
Relay
1
COM
N.O.
Display Head
No. 2
Relay
2
COM
N.O.
Relay
1
COM
N.O.
Position this jumper as shown to
select 5V,12V, or 24V output for
POUT-1, POUT-2, SP1, or SP2
5V
12V
24V
NOTE:
EIB Remote Start/Stop Switches
Range of switch times allowed for
the remote switch inputs:
Minimum - 0.25 seconds
Maximum - 30 seconds, longer times
result in an E21-remote start switch
error
5, 12, or 24 V for POUT-1, POUT-2,
SP1, or SP2 are selected by Pulse
Voltage Selector jumper above. See
“Pulse Output for EMR3” on
page 52 for connection details.
For Port 2 assignments,
see Figure 27 in Setup
Manual.
For Port 1 assignments,
see Figure 26 in Setup
Manual.
Relay 1 contacts are
normally open and only
close during a fuel
delivery.
To connect a 2-stage
solenoid valve to the IB,
connect Solenoid S1 to
Relay 1 and connect
Solenoid S2 to Relay 2.
Relay Ratings:
5A at 120 Vac
2.5A at 240 Vac, 24 Vdc
Start pulse signals are active
during the entire delivery.