Specifications

RS232 GENDER CHANGER AND TX-RX CROSSOVER ADAPTER

(numbers refer to a standard 9 pins D-type connector, see drawing)

SYN-DC-936 CR1000 RS232

1 open

2 3

3 2

4 6

5 5

6 4

7 8

8 7

9 open

viewed from the pins side

List of design changes

1. The LED is moved from C3 to C5 in order to leave C3 unused. This is required according to

the CR1000 documentation because we are using COM2 as a serial port (for the Garmin)

2. The previous connection from C5 to the manual FastScan switch is therefore removed, and

the switch is not available anymore since no spare control ports are available.

3. The EX3 excitation channel is now also exciting the NT1400 pressure transducer

4. In the MUX, the connections to the current sensing shuts have been added (at SE channels 3,

5, 7, 9)

5. In the MUX, the missing connection to the other thermistors in the thermistor string have

been added (at SE channels 6, 8, 10)

6. in the MUX the connection for the NT1400 has been added (at SE channel 25)

7. added the wirings for the current sensing shunts

8. added RS232 adapter wiring

9. changed ground routing for the return of the pulse signal of the

10. added RS232 adapter wiring

11. changed ground routing for the return of the pulse signal of the Young sensor

12. the GREY wires of the HygroClips have moved from the CR1000 to the MUX