Vishay VT400 - Appendix A: Technical Drawings; i. System Block Diagram

Appendix A: Technical Drawings
VT400 Technical Manual, Rev. A5 66 Doc # UM-VT400-EN
iv. Cabling Diagram
Network
Biasing
Resistors
Chassis
Earth
470R
150
R
470
R
A
B
RT
+V
White
Brown
Shield
Slave #1
(
VT x00
)
Slave #2
(
VT x00
)
(Up to 30
slaves)
…
Slave #30
(VT x00)
A
B
A
B A B
RT
120R
Termination
Resistor
2X0.34mm
2
twisted pair shielded
Max cable length: 1000m
RS485A CABLE CONNECTIONS
Power &
Setpoints
Connector
3
4
7
5
6
I
1
C
I
C
O
O
2
O
1
In
p
ut 1
Tilt Switch
Out
p
ut 1
Out
p
ut 2
Fuse
Digital
Outputs
Imax=100m
+
+
+
+
- -
-
-
L
O
A
D
L
O
A
D
Power
Supply
9-24VDC
Power
Supply
24VDC
DIGITAL OUTPUTS & TILT CONNECTIONS
To VTx00
RS232
Connector
To VTx00
RS232
Connector
Printer DB25 Male
DB25 Female
PRINTER & PC CABLES
DB9
Metal
Case
3
5
2
3
5
2
DB9
fem
DB9
Metal
Case
DB9
fem
Shield
T
X GRN
GND BRN
DTR WHI
Shield
T
X GRN
GND BRN
DTR WHI
GRN RX
BRN GND
WHI
DTR
GRN RX
BRN GND
WHI
DTR
RX
GND
T
X
RX
GND
DTR
3
7
20
2
5
3
3
7
2
3
7
2
Printer DB25 Male
OR
To
Serial
Printer
DB9 FEM OR
master
MAX 15m
MAX 15m
T
o
Printer
To PC