Campbell Manufacturing R410 用户手册

CS I/O CONNECTOR,  9-PIN D-SUB MALE

1

5V

I

Sources 5 VDC to power peripherals

2

GND

GND for pin 1 and signals

3

Ring

O

Raised by modem to put datalogger
into telecommunications mode

4

RX

O

Serial data receive line

5

Modem Enable

I

Raised when datalogger determines
that associated modem raised the
ring line

6

Synchronous Device

Enable

I

Used by datalogger to address
synchronous devices; can be used as
a printer enable

7

CLK/Handshake

I/O

Used by datalogger with SDE and
TX lines to transfer data to
synchronous devices

8

12V supplied by

datalogger

PWR

Sources 12 VDC to power
peripherals

9

TX

I

Serial data transmit line

I = Signal Into the RF400,  0 = Signal Out of the RF400