Manual

KRAMER

Electronics

MATRIX ROUTING SWITCHER

2 COMMUNICATION

2.1 FORMAT

Interface

Speed

(Bauds)

DAT

(Bits)

Parity STOP

(bits)

RxD level TxD level

RS232 9600 8 no Min. :1 Max. : 5 Min. :+/-4v Max. :+/-12v +/-10v

RS422 9600 8 no Min. :1 Max. : 5 Min. :0v Max. :+5v 0v / +4v

KEYBOARD 9600 8 no Min. :1 Max. : 5 Min. :0v Max. :+5v 0v / +4v

Octet Octet 2 Octet 3 Octet 4 Octet 5

1 2 3 4

FORMAT OF

THE DATA

Instruction Input / Data Output / Address Layer

NOTES: Input / Data : Hexadecimal number of source (00h to EFh)

Output / Address : Hexadecimal number of destination (00h to EFh)

2.2 TRANSMISSION CYCLE

Symbol Description Time Units

Trec Command reception 4 mS

Twr Working time of the Matrix 15 mS

Tret Return Informations from the Matrix 4 mS

Ts Time for ready 2 mS

Tmc Maximum time of a cycle 25 mS

EXPLANATION : Reception time RX is 4 milli-Seconds. The routing switcher operates during 15 mS, returns

the answer TX (4 mS), and comes back to ready state after 2 mS. The routing switcher takes 25 milli-Seconds to

execute a command. When a new command occurs during unready time (Tmc), this command will be

Command from

the computer

(matrix return)

Twr

Trec

Tmc

Next command

Tret