7
K R A M E R
E lectron ics
MATRIX ROUTING SWITCHER
2.3.2 RS422 Reception and Remote Control Panels
The serial RS232 communication port of the matrix is a SUB-D9 female plug. To connect a RS422 device, you
have to use a male/female uncrossed cable :
Pin
Signal
Direction
Function
1 Tx-
Æ
Transmission of the data toward PC (diff-)
2
n.c.
Should not be connected
3
n.c.
Should not be connected
4 Rx+
Å
Receipt of the data of the PC (diff+)
5 GND
---
Ground
6 Tx+
Æ
Transmission of the data toward PC (diff+)
7
n.c.
Should not be connected
8 ALIM
Æ
(+10v, 100mA) Control Panel Electric Power
Should not be connected for RS422
RS422
FEMALE
PLUG
9 Rx-
Å
Receipt of the data of the PC (diff-)
2.3.3 RS232 / Remote Control Panel external cable separator.
This cable is realized with one 9 wires flat cable, one female SubD9, two males SubD9.
For RS232 section, wires 1, 6, 4, 9 must be cut.
to RS232 (computer)
to Matrix
to Remote Control Panel
SubD
Female
SubD
Male
SubD
Male
1
6
nc : 2
7 : nc
nc : 3
8 :
10v
4
9 : nc
MATRIX
ROUTING
SWITCHER
RS422
1
6
nc : 2
7 : nc
nc : 3
8 : 10v
4
9 : nc
5
RS422
External
Device
1
6
2
7
3
8
4
9
5
1
6
2
7
3
8
4
9
5
1
6
2
7
3
8
4
9
5
