Global American 3304220, Руководство пользователя

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The 3304220 also provides for user in select to using the COM4 as an RS422/485.
The CN16 for uses as an RS232, the CN11 for uses as an RS422 or RS485.
Please reference to the following for setting the JP22 & JP23 at disable and JP24 at
enable if uses as RS232 at CN16. Or setting the JP22 & JP23 at non-disable and JP24
at disable if uses as RS422 or RS485 at CN11. The default setting is RS-232 at CN16.
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CN11 : RS422/485
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 TX- 2 TX+
3 RX+ 4 RX-
5 GND 6 RTS-
7 RTS+ 8 CTS+
9 CTS- 10 NC
??
JP22 : Receiver Enable Control
JP22 DESCRIPTION
1-2 Always Enable
3-4 Enable by writing the REG : 2 EFH BIT1=1
*5-6 Always Disable
*) : default setting
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JP23 : Transceiver Enable Control
JP23 DESCRIPTION
1-2 Always Enable
3-4 Enable by ”-RTS” signal
5-6 Enable by writing the REG : 2 EFH BIT0=1
*7-8 Always Disable
*) : default setting
??
JP24 : COM4 Selection
JP24 DESCRIPTION
ON As RS-422/485 in CN11
*OFF As RS-232 in CN16
*) : default setting