Specifications

Table Of Contents
INSTALLATION
Page 30 MRC-565 Packet Data Radio Operations and Maintenance
4.1.4.2 Data Port
The Data Port may be used for connecting to a data logger, GPS receiver or other serial input
device using a standard straight thru RS-232 cable with a 9-pin male D connector to 9-pin female
D connector. Refer to Section 4.0 for more information on interfacing to data loggers or other
serial input devices. All signals are RS232 (+/- 5V) levels.
DATA PORT – 9S
Pin
Signal
1
Not Used
2
Tx Data
3
Rx Data
4
DTR
5
Ground
6
DSR
7
RTS
8
CTS
9
Ring
4.1.4.3 Aux Port
The AUX PORT may be connected to any serial input device using a standard straight thru RS-
232 cable with a 9-pin male D connector to 9-pin female D connector. This port is also used for
interfacing to MRC test equipment (pins 6, 8, and 9).
UX PORT – 9S
Pin
Signal
1
Not Used
2
Tx Data
3
Rx Data
4
Not Used
5
Ground
6
MCLK (3.3V CMOS)
7
Not Used
8
MDIR (3.3V CMOS)
9
MSET (3.3V CMOS)
IMPORTANT
The AUX port connector has three extra pins (pins 6, 8, and 9) whose signals do not
conform to the RS-232 standard. These are for MRC test purposes. These pins will NOT
interfere with a normal 3-wire RS-232 connector (pins 2, 3, and 5).