Varec TankGate Interface 8315 Series Manual de usuario Pagina 23

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13
8300 Hardware
For RS-485, set the Hardware Handshaking Switch SW1 to the ‘A’ position. Refer to the
following table:
Communica-
tion Physical
Layer
Hardware
Handshak-
ing
SW1
Set-
ting
SW2 Set-
ting
Notes
RS-232
No A UP
(towards
the RS-
232 side)
Use with a PC. Signals at terminal
block J5 will be RS-232
RS-232
Yes B UP
(towards
the RS-
232 side)
Use to communicate to systems that
require Request To Send (RTS) in order
to transmit (Modems, Radios, etc.)
RTS and CTS signals will be available at
terminal block J6
RS-485
Yes A DOWN
(towards
the RS-
485 side)
Always SW1 set to the A position when
using RS-485..
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