Campbell-scientific NL100 Network Link Interface Manuel d'utilisateur télécharger pdf (Page 31)

Appendix A. CS I/O Port

The CS I/O port is Campbell Scientific's input/output port. It is not a standard

RS-232 pin-out. The following table provides pin-out information on the port

when connected to a datalogger.

Name

Signal

Type

Description

1 5 V (supplied by the

datalogger)

Input Not used by NL100/105

2 Signal Ground Provides reference for voltage

levels

3 Ring Output Raised by a NL100/105 to put

the datalogger into the

telecommunications mode

4 RXD Output Serial data transmitted to the

datalogger

5 Modem Enable Input Raised by the datalogger when

it determines that the

NL100/105 raised the ring line

6 Synchronous Device

Enable

Input Used by the datalogger to

address the NL100/105 when

the NL100/105 is configured

as a synchronous device

7 Clock/Handshake Input Used by the datalogger with

SDE and TXD lines to address

and transfer data to

synchronous devices

8 12 V (supplied by the

datalogger)

Not used by the NL100/105

9 TXD Input Serial data received from the

datalogger

A-1

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Campbell-scientific NL100 Network Link Interface Manuel d'utilisateur Page 31