Developers Kit
Preliminary
16
5.1 Serial Adapter Board
The Serial Adapter Board allows the use of different forms of communication with the OEM
radios. The user must choose between using RS-232 levels or 5 Volt TTL logic levels for interfacing with
the OEM radio when using the adapter board.
Figure 2. Serial Adapter Board Assembly Drawing
Item Qty Reference
Description
1
1
J1
Amp 40 Pin Connector (
177985-1)
mates directly with J1 on Radio
2
1
J2
DB9 Male connector mates with provided cable to PC or OEM Host
3
1
P1
Power Connector provides power to entire kit with provided 5Vdc PS
4
2
J10
Generic 40 Pin Dip Header 0.100 Centers for test points
5
7
J3-9
Generic 3 Pin Sip Header 0.100 Centers for level translator selection
6
2
U1-2
Max202 Voltage Level Conversion Chips
7
1
SW1
SPST Switch for Reset
8
1
SW2
EEPROM Write Enable when Depressed
NOTE:
The pins on the 40 pin header strip match up 1 to 1 with the pin-out of the OEM Connector
J1.
