Page
Chapter: 1
Section:
3
CONFIGURATION
1.2 .1 CONNECTORS AND CONNECTIONS
1.2.1 .1 CONNECTOR X1
It is a SUB-D type 9-pin male connector for the RS-232 serial port: RS-232.
The cable shield must be connected to pin 1 of the connector at both ends of the cable.
SUGGESTIONS FOR THE RS-232C INTERFACE
* Cable length
The EIA RS232C standard specifies that the cable capacitance must not exceed
2500pF; therefore, since a typical cable for this application usually has a capacitance
from 130 to 170pF/m, the maximum length will be limited to 15m (50 ft).
It is recommended to use shielded twisted-pair cables in order to minimize interference
thus avoiding poor communications over great lengths.
It is recommended to use 7-conductor cables with a minimum section of 0.14 mm² per
conductor and overall shield.
Atention:
Do not manipulate the connectors with the unit connected to main AC
power
Before manipulating these connectors (inputs/outputs, feedbach, etc)
make sure that the unit is not connected to main AC power
PIN
SIGNAL
FUNCTION
1
FG
Shield
2
RxD
Receive data
3
TxD
Transmit data
4
DTR
Data terminal ready
5
GND
Ground conection
6
DSR
Data send ready
7
RTS
Request to transmit
8
CTS
Clear to send
9
----
Not connected
REAR PANEL
Содержание 9701
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