Campbell CR200, Руководство оператора

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CR200 Overview
OV1.2 Commun
OV1.2.1 RS-232
00 through the RS-232 port (Figure
OV1-3). The CR200 RS-232 port is a DCE device. A limited version of the
RS-232 port is supported with no hardware flow control. Table OV1-1 gives a
tput =
±
5.4 V
uter RS-232 Pin-Out
ication and Data Storage
A computer can connect directly to the CR2
brief description of each RS-232 pin.
The CR200 RS-232 port is not electrically isolated. Connection to an AC
powered computer may cause “ground loops” leading to measurement
problems.
Maximum input =
±
25 V
Maximum Output =
±
13 V
Typical Ou
TABLE OV1-1. Comp
ABR = Abbreviation for the function name
PIN
O
2 device
= Pin number
= Signal Out of the CR200 to a RS-232 device
I = Signal Into the CR200 from a RS-23
PIN ABR I/O Description
1 no connection
2 TX O asynchronous transmit
3 RX I asynchronous receive
4 no connection
5 GND ground
6 DSR O +5 V
7 no connection
8 CTS O V request to send +5
9 no connection
RS-232
Pin 1
Pin 6
FIGURE OV1-3. Serial Comm Interfaces unication
OV-4