ACTi E66 Installation Guide download pdf (Page 9)

E-9

4 Dip Switches

The dip switches are located on the circuit board inside the PS-A unit's rear cover. For informa-

tion about removing the Rear cover, 6. Installation.

The factory settings are all OFF.

Dip

Switches

Description ON OFF

RS-232C

(COM1)

RS-232C

(COM2)

RS-422

(COM2)

RS-485

(COM2)

Changes #9 pin

(RI <-> +5V)

+5V 500mA external output

possible

ON/OFF ON/OFF ON/OFF ON/OFF

Changes COM2's

communciation method

RS-422/RS-485 RS-232C

OFF OFF ON ON

Changes COM2 (RS-232C)

#9 pin (RI <-> +5V)

+5V 500mA external output

possible

ON/OFF ON/OFF ON/OFF ON/OFF

Changes TX data's output

mode

TX data output is NOT

controlled via the RTS signal

TX data output is controlled

via the RTS signal. (normally

output)

OFF OFF ON/OFF ON

Switches the TX termination

resistance ON/OFF

Inserts termination

resistance of 220Ω between

TXA and TXB.

No termination

OFF OFF ON

ON/OFF

Switches the RX termination

resistance ON/OFF

Inserts termination

resistance of 220Ω between

RXA and RXB.

No termination

OFF OFF ON

ON/OFF

Switches the shorting of TXA

and RXA ON or OFF

Shorts TXA and RXA

(RS-485 mode)

No shorting

(RS-422 mode)

OFF OFF OFF ON

Switches the shorting of TXB

and RXB ON or OFF

Shorts TXB and RXB

(RS-485 mode)

No shorting

(RS-422 mode)

OFF OFF OFF ON

Changes COM2's

communciation method

RS-422/RS-485 RS-232C

OFF OFF ON ON

10 No Connection - - - - - -

SW4

SW5

SW7

SW6

SW8

TXA

TXB

RXA

COM2

RXB

The COM2 compatible Serial Mode Select Switches (SW4 to SW8) operate as

shown in the circuit diagram below.

PS-A Inside

*1 If you use the termination resistance, base your settings on the connection specifications.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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ACTi E66 Installation Guide Page 9

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