
7.3 Installation
KV-300 Series Only
KV-300
KV-10/80
Chapter 7 KV-L2 Serial Interface Module
1-249
1
7
7.3.4 Connecting to External Units
Connecting to An External Display
Connect the KV-L2 to the external displays through the RS-232C port. Set the KV-
L2 to Display Interface mode.
Use the serial interface equivalent to the Host Link protocol.
When using port 1
Use optional connection cable OP-90906.
When using port 2 (set to RS-232C mode)
Use optional connection cable OP-20302.
Connecting to an IBM PC-AT Computer
When connecting the KV-L2 to an IBM PC-AT computer, use either RS-232C or RS-
422A mode. To connect through RS-422A mode, the PC must have an RS-422A
interface.
Set the KV-L2 to either KV, Display interface , or non-procedure modes.
When using port 1
An RS-232C cable is required. The following figure shows the wiring connections.
When using port 2 (set to RS-232C mode)
The following figure shows the wiring connections.
SG
(SG)
SDB
RDB
SDA
(SD)
RDA
(RD)
135
24
1
2
3
4
5
6
7
SD
RD
SG
SD
RD
RS
CS
DR
SG
Black
Display
8
9
3
5
1
Brown
Blue
54321
9876
D-Sub 9-pin connector
KV-L2 terminal nos.
SG
(SG)
SDB
RDB
SDA
(SD)
RDA
(RD)
135
24
KV-L2 terminal nos.
2
3
4
5
6
20
7
SD
RD
SG
SD
RD
RS
CS
DR
ER
SG
KV-L2 PC
3
5
1
D-Sub 25-pin
connector
1
23
456 7891011 12 13
14
15 16
17 18 19 20 21 22 23 24 25
2
3
4
5
7
2
3
4
5
6
20
7
SD
RD
RS
CS
SG
SD
RD
RS
CS
DR
ER
SG
KV-L2 PC
D-Sub 25-pin
connector
1
23
456 7891011 12 13
14
15 16
17 18 19 20 21 22 23 24 25
1
2
3
4
5
6
7
1
2
3
4
5
6
7
SD
RD
RS
CS
SG
SD
RD
RS
CS
SG
8 8
9 9
KV-L2 Display
54321
9876
D-Sub 9-pin connector
KVHKA Chap 07_1to4.p65 08.3.11, 11:18 AM249
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