QUANTUM
™
LX EVAPORATOR CONTROL PANEL
COMMUNICATIONS SETUP
090.610-CS (MAY 2016)
Page 120
COMMUNICATIONS LOOPBACK TEST
DESCRIPTION
NOTE: Communications Loopback testing is not
yet available for the Q5.
The purpose of this section is to verify the proper
operation of the following communications ports:
Comms 1 (TB1) and 2 (TB2) - RS-422
Comms 1 (TB1) and 2 (TB2) - RS-485
Comms 2 (TB2) and 3 (PL6) – RS-232
By utilizing a loopback test harness (as shown on
the following pages), the technician has the abil-
ity to locally test the Quantum™ communications
hardware and jumper configuration.
HARDWARE SETUP FOR TESTING RS-232
To create the communications loopback harness
for RS-232 testing, use the following example(s):
Q4 RS-232 Test Harness
Set the communications jumpers as follows:
•
Set LK11 to position
A
•
Plug the RS-232 test harness (as shown
above) into the Com ports at TB3 and
PL6.
LK10
LK9
D3
D1
COM2 (TX)
Flash Card Socket
(Located under
board)
PL6
LK11
B A
D6
COM2 (RX)
LK16
A B
LK7
D2
LK8
PL3
PL4
PL11
PL15
LK4
LK3
PL5
COM-2
RS-232
3 2 1
KB
D8
PL1
PL2
SW1
ON
1
2 3 4 5 6 7 8
0
1
2
3
4
5
6
7
RS-422
RS-485
1
2
3
4
COM-1
LK6
B
A
LK5
LK7
LK6
LK4
LK1
LK3
LK17
LK5
A B
1
2
3
4
RS-
422
RS-
485
TB1
TB2
LK2
LK1
PL3
PL4
LK2
PL1
PL8
PL7
PL9
PL13
PL12
PW
R
SUSP
FLASH
LK12
LK11
PL24
PL18
PL19
PL17
LK8
LK9
LK10
PL16
PL10
PL14
TB3
Verify that
LK11 is set to
A
position.
B
A
Com-2 (TB3) & Com-3 (PL6) RS-232 Connector &
Jumper Location
TX
RX
COM
TX
RX
COM
3-Pin Connector
10-Pin Connector
1
9
3
5
7
2
10
4
6
8
1
3
HARDWARE SETUP FOR TESTING RS-422
To create the communications loopback harness
for RS-422 testing, use the following example(s):
Q4 RS-422 Test Harness
Set the communications jumpers as follows:
1. Set LK11 to position B
2. Set LK16 to position A
3. Set LK17 to position A
4. Plug the RS-422 test harness (as shown
above) into the com ports at TB1 and TB2
as shown here:
LK8
LK10
LK9
LK7
LK2
LK1
LK4
LK3
LK6
LK5
Verify
the jumpers in
these locations
LK17
A B
LK11
B A
LK16
A B
1
2
3
COM-2
RS-232
TB3
D8
D1
D6
D2
D3
PL2
SW1
TB2
1
2
3
4
CO
M
-2
RS
-422/
RS
-485
TB1
1
2
3
4
CO
M
-1
RS
-422/
RS
-485
Q4 RS-422 Test Configuration
4-Pin Connector
4
1
-TX
+TX
+RX
-RX
+RX
-RX
-TX
+TX
1
4
4-Pin Connector
Содержание QUANTUM LX Control Panel
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Страница 111: ...QUANTUM LX EVAPORATOR CONTROL PANEL COMMUNICATIONS SETUP 090 610 CS MAY 2016 Page 111 SECTION 9 Q4 CONTROLLER...
Страница 123: ...QUANTUM LX EVAPORATOR CONTROL PANEL COMMUNICATIONS SETUP 090 610 CS MAY 2016 Page 123 SECTION 10 APPENDICES...