Campbell-scientific SDS122 Two-Way Serial Data Switch Manuel d'utilisateur télécharger pdf (Page 7)

SDS-122 SERIAL DATA SWITCH

Switched Datalogger Port B

FIGURE 3. Pin Positions for Switched

Datalogger Port ‘B’: 9-way Female ‘D’ Type

Connector

The switched datalogger port (marked ‘PORT

B’ in Figure 1) is a 9-way female ‘D’ type

connector, having the following pin

configuration:

PIN ABBREVIATION I/O

1 +5V

20V

3 RING I

4RX I

5ME O

6 SDE/PE O

7 CLK/HS O

8 Not connected

9TX O

25-Way Switched RS232 Port A

FIGURE 4. Pin Positions for Switched RS232 Port ‘A’: 25-way Female ‘D’ Type Connector

The 25-way switched RS232 port (marked ‘RS232 PORT A’ in Figure 1) is a 25-way female ‘D’ type

connector, having the following pin configuration:

PIN ABBREVIATION INPUT/OUTPUT

DTE DCE

1 Frame Ground

2TX O I

3RX I O

4 RTS O I

5 CTS I O

6 DSR I O

7 GND

15 External Power Supply I I

20 DTR O I

Other pins are not connected.

5 4 3 2 1

9 8 7 6

25 14

SERIAL I/O

13 1

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Campbell-scientific SDS122 Two-Way Serial Data Switch Manuel d'utilisateur Page 7