KEYENCE Visual KV Series - Manual (Page 272)

7.3 Installation KV-300 Series Only
KV
-300
KV-10/80
Chapter 7 KV-L2 Serial Interface Module
1-248
7
7.3.3 Connector Wiring
Wiring RS-232C cables
D-Sub 25-pin connector
Terminal block
Wiring RS-422A cables
Note: Do not short-circuit the SG terminal with any other signal terminal. Doing so
may cause failure of the unit.
Recommended communications cable (for use with RS-422A)
1
23
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
7
SD
RD
RS
CS
SG
KV-L2
Unit designated
as DCE
2
3
4
5
6
20
7
SD
RD
RS
CS
DR
ER
SG
Unit designated
as DTE
2
3
4
5
7
SD
RD
RS
CS
SG
KV-L2
2
3
4
5
6
20
7
SD
RD
RS
CS
DR
ER
SG
D-Sub 25-pin
connector
SG
(SG)
SDB RDB
SDA
(SD)
RDA
(RD)
1 3 5
2 4
3
5
1
SD
RD
SG
KV-L2
2
3
4
5
6
20
7
SD
RD
RS
CS
DR
ER
SG 3
5
1
SD
RD
SG
KV-L2
2
3
4
5
6
20
7
SD
RD
RS
CS
DR
ER
SG
Unit designated
as DTE
Unit designated
as DCE
KV-L2 terminal nos.
SG
(SG)
SDB RDB
SDA
(SD)
RDA
(RD)
1 3 5
2 4
KV-L2 terminal nos.
3
2
5
4
1 SDA
SDB
RDA
RDB
SG
SDA
SDB
RDA
RDB
SG
KV-L2 External unit
Item Specification
Cable type Shielded cable
Logarithm 3P
Maximum conductor resistance at 20°C (68°F) 88.0 Ω/km
Maximum insulation resistance 10.000 MΩ·km
Withstand voltage 500 VDC for 1 min
Maximum electrostatic capacity (1 kHz) 60 nF/km on average
Characteristic impedance (100 kHz) 110 ±10Ω
KVHKA Chap 07_1to4.p65 08.3.11, 11:18 AM 248