Referring to Figure 3, the TxD/Rxd and 485 direction TTL signals are routed to the hosts RS-485
half duplex driver. The mode bits are permanently tied to circuit common, as all configuration is
going to occur using RDM or the default input pin GPI0. A single LED or I/O pin is used to
determine if the radio module is in range of a transmitter.
When a user wants to select the default radio module, the switch is held for .5s, then the
module is set back to SHoW ID 201.
Figure 3: Minimum Signal Implementation
5.2
SHoW DMX Neo Radio for W-DMX (P/N 5794)
The SHoW DMX Neo Radio for W-DMX was created to be a drop-in replacement for Wireless
Solutions’ OEM card. Both devices share the same footprint and pin configuration. Refer to
Host
Radio Module
LN Mode
In Range
485 Direction
Tx Data
Rx Data
29
28
31
14
16
Driver DI
Driver RO
Mode 0
Mode 1
32
34
GND
GND
GND
LED; I/O
Driver RE/DE
GPI0
Switch; I/O
19
Содержание 5792 SHoW DMX Neo
Страница 19: ...Table 8 below for the mode selection truth table ...
Страница 23: ...Table 9 for signal descriptions ...