Extron electronics SW12 VGA Ars Instruções de Operação descarregar pdf (Página 25)

SW8/12 VGA Ars • Control

3-2

Control

Remote Control via Simple Instruction Set (SIS

™

)

TheSW8/12VGAArsswitcherscanbecontrolledviaRS-232usingExtron’sSimple

InstructionSet(SIS)commands.

TheRS-232portcommunicationsprotocolsare:9600baud,8databits,1stopbit,

no parity, and no ﬂow control. Cable pinouts are shown in the table below.

Onlypins2,3,and5arerequired.Disconnectallotherconductorsinthe

attachment cable for proper operation.

Pin RS-232 Description RS-232 Control Port Connector

1 — —

DB9 Pin Locations

Female

2 Tx Transmit data

3 Rx Receive data

4 — —

5 Gnd Signal ground

6 — —

7 — —

8 — —

9 — —

RulesgoverningSIScommandsinclude:

 • SIScommandsconsistofoneormorecharacterspereld.

 • Nospecialcharactersarerequiredtobeginorendacommandsequence.

 • Whenacommandisvalid,theswitcherexecutesthecommandandsendsa

response to the host device.

 • Allresponsesfromtheswitchertothehostendwithacarriagereturnanda

linefeed(CR/LF=

]

), which signals the end of a response character string.

 • Astringisoneormorecharacters.

Switcher-initiated (unsolicited) messages

When a local event, such as a front panel operation or error condition, occurs, the

switcher responds by sending a message to the host. Switcher-initiated messages

are listed below:

]

Theswitcherissuesthecopyrightmessagewhenitrstpowerson.

y = the number of inputs (8 or 12, depending on the model)

x.xx

=thermwareversionnumber

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 40 41

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