Technical data

USING THE UNIVERSAL DEVELOPER'S KIT
72
LZT 123 8020 R1A
Operation Mode Settings:
Switch Position (S501) Function ON/OFF
Position 1 DTMS ON
Position 2 CTS ON
Position 3 DTR ON
Position 4 DFMS ON
Position 5 RTS ON
Position 6 DSR ON
Position 7 WAKE ON
Table 5: Baseline Dip Settings for Gx-47/48
12.2 Operation Mode
Serial communication between the target module and the RS-
232 level shifters is easily enabled / disabled via dip switches
(S501). This allows testing of flow control (HW or None). This
feature also allows the connection of your application's serial
interface to the module while providing other connections, such
as power, through the developer's board.
Switch Signal ON OFF
Position 1 DTMS Normal Operation
If External application is
directly connected to System
Connector Header
Position 2 CTS HW Flow Control enable
If External application is
directly connected to System
Connector Header
Position 3 DTR Normal Operation
If External application is
directly connected to System
Connector Header
Position 4 DFMS Normal Operation
If External application is
directly connected to System
Connector Header
Position 5 RTS HW Flow Control enable
If External application is
directly connected to System
Connector Header
Position 6 DSR Normal Operation
If External application is
directly connected to System
Connector Header
Position 7 WAKE
Signal is grounded
(
L
og
i
c
L
o
w
)
Signal is floating (Logic High)
Table 6: Description of Operation Mode Switch Settings
When switches 1 through 6 are in the OFF position, they are
disconnected from the level shifters on the developer's board.