Campbell CR1000 User Manual

Appendix C. Serial Port Pinouts
send the data, and return to sleep mode with no 40 second timeout.
Table 189. Standard Null-Modem Cable or Adapter-Pin
Connections
DB9 Socket # DB9 Socket #
1 & 6 ——————————— 4
2 ——————————— 3
3 ——————————— 2
4 ——————————— 1 & 6
5 ——————————— 5
7 ——————————— 8
8 ——————————— 7
9
most null modems have no
connection
1
9
1
If the null-modem cable does not connect pin nine to pin nine, the modem will need to be
configured to output a RING (or other characters previous to the DTR being asserted) on the
modem TX line to wake the datalogger and activate the DTR line or enable the modem.
635

Campbell CR1000 Specifications

General

Power Requirements	9.6 to 16 VDC
Data Logger Operating System	CRBasic
Memory	4 MB
Analog Inputs	16 single-ended or 8 differential
Analog Input Resolution	13 bits
Analog Input Range	+/-2.5V
Digital I/O	8
Pulse Counters	2
Communication Ports	RS-232
Operating Temperature	-25°C to +50°C
Pulse Channels	4