6
K R A M E R
E lectron ics
MATRIX ROUTING SWITCHER
temporally stored in a stack FIFO (first-in first-out) with 2 levels records. To be sure not to overflow the stack,
the minimum time of 25 mS between each command should be respected.
2.3 SUB-D9 CONNECTOR for RS232, RS422, and Remote Control Panels
2.3.1 RS232 Réception
The serial RS232 communication port of the matrix is a SUB-D9 female plug.
To connect a computer, you have to use a male/female uncrossed cable :
Pin
Signal
Direction
Function
1
n.c.
Should not be connected
2 TxD
Æ
Transmission of the data toward PC
3 RxD
Å
Receipt of the data of the PC
4
n.c.
Should not be connected
5 GND
---
Ground
6
n.c.
Should not be connected
7 CTS
Å
PC ready to give out (Clear To Send)
8 RTS
Æ
Matrix demand to send (Request To Send)
RS232
FEMALE
PLUG
9
n.c.
Should not be connected
nc : 1
6 : nc
2
7
3
8
nc : 4
9 : nc
5
nc : 1
6 : nc
2
7
3
8
nc : 4
9 : nc
5
MATRIX
ROUTING
SWITCHER
RS232
PC
COM
RS232
