3-7
MMC 804
In order to program the DX408i system by PC it is necessary to set the Service Type of the SIO
port as PCMMC using system programming (MMC 804).
Parameters related to PCMMC and remote programming are also set in system programming
(MMC 804).
The pin connections from SIO port to PC/modem are as follows.
PCMMC
SIO port
PC
9PIN
25PIN
9PIN
RXD(2)
---------------------------------------
TXD(3)
TXD(3)
TXD(3)
---------------------------------------
RXD(2)
RXD(2)
GND(5)
---------------------------------------
GND(7)
GND(5)
Remote Programming
SIO port
MODEM
9PIN
25PIN
RXD(2)
---------------------------------------
TXD(3)
TXD(3)
---------------------------------------
RXD(2)
GND(5)
---------------------------------------
GND(7)
DTR(4)
---------------------------------------
DTR(20)
Summary of Contents for DX-408
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Page 44: ...2 28 Chapter 2 DX 408 DX 408i Digital Key System Installation ...
Page 55: ...3 11 Door Phone Interface Module Connections ...
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