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GMCT20 Cable Installation Instructions

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Connectors

The cable connects a 20-pin female Positronic GMCT connector (GMCT20 connector) to a second 
GMCT20 connector or twenty unterminated, tinned, and stripped wires. The GMCT20 connector 
provides connection to the switch module. The second GMCT20 connector and unterminated cables 
provide connection to your application. Figure 4 shows the pinout for the GMCT20 connector.

Figure 4.  

GMCT20 Mating Connector

Cable Configurations

The GMCT20 cable is available in two configurations:

GMCT20-GMCT20

GMCT20-BARE WIRE

The following sections describe each of the configurations.

GMCT20-GMCT20 Cable

The GMCT20-GMCT20 cable is recommended for connecting the switch module to your system.

Use the pinouts and the pin assignments listed in Table 1 to determine how to connect signals to your 
application using the GMCT20-GMCT20 cable. 

Refer to the 

NI Switches Help

 for a complete listing of channel names and pinouts.

In the following table, letters in parentheses reference the pin designators of the connector.

Table 1.  

Pin Assignment for GMCT20-GMCT20 Cable

GMCT20 P1/P2 Pin

NI PXI-2585 Channel

NI PXI-2586 Channel

A

CH6 (A)

CH6 (A)

B

COM6 (B)

C

CH0 (C)

COM0 (C)

D

COM7 (D)

E

CH5 (E)

CH5 (E)

F

CH0 (F)

H

CH7 (H)

CH7 (H)

PIN B

PIN C

PIN X

PIN U

PIN A

PIN W

Summary of Contents for GMCT20

Page 1: ...this guide The symbol leads you through nested menu items and dialog box options to a final action The sequence File Page Setup Options directs you to pull down the File menu select the Page Setup it...

Page 2: ...r application Refer to Figures 1 through 3 for illustrations of the cable and refer to Figure 4 for an illustration of the connector Caution Always de energize hazardous voltage sources before connect...

Page 3: ...ions section to determine how to connect signals to your application Connect the second GMCT20 connector on the cable to your application Connect the unterminated wires to your application Figure 2 GM...

Page 4: ...GMCT20 GMCT20 BARE WIRE The following sections describe each of the configurations GMCT20 GMCT20 Cable The GMCT20 GMCT20 cable is recommended for connecting the switch module to your system Use the pi...

Page 5: ...s to your application In the following table letters in parentheses reference the pin designators of the connector J COM5 J K CH1 K COM1 K L COM8 L M CH4 M CH4 M N CH1 N P CH8 P CH8 P R COM4 R S CH2 S...

Page 6: ...ower load greater than 400 A2 channels will damage the GMCT20 cable under certain conditions Refer to the NI PXI 2586 Specifications for example calculations and additional information about load dera...

Page 7: ...GMCT20 300 V CAT II NI GMCT20 NI PXI 2585 NI PXI 2586 NI PXI 2585 NI PXI 2586 GMCT20 2 GMCT20 GMCT20 GMCT20 BARE WIRE 1 2 GMCT20 2 4 4 GMCT20 GMCT20 4 GMCT20 BARE WIRE 5 6 6 monospace...

Page 8: ...GMCT20 2 ni com jp GMCT20 NI PXI 2585 NI PXI 2586 1 4 0 6 cm GMCT20 1 3 4 1 1 GMCT20 1 NI PXI 2585 2 1 4 0 6 cm 1 2 GMCT20 3 NI PXI 2585 NI PXI 2585 10x1 Power Multiplexer 3 2 1...

Page 9: ...National Instruments Corporation 3 GMCT20 3 1 2 2 GMCT20 2 GMCT20 GMCT20 3 GMCT20 BARE WIRE 1 GMCT20 2 1 GMCT20 2 3 20 1 1 2 2 1 2 3...

Page 10: ...GMCT20 2 GMCT20 4 GMCT20 4 GMCT20 GMCT20 2 GMCT20 GMCT20 GMCT20 BARE WIRE GMCT20 GMCT20 GMCT20 GMCT20 1 GMCT20 GMCT20 NI 1 GMCT20 GMCT20 GMCT20 P1 P2 NI PXI 2585 NI PXI 2586 A CH6 A CH6 A B COM6 B C...

Page 11: ...M1 K L COM8 L M CH4 M CH4 M N CH1 N P CH8 P CH8 P R COM4 R S CH2 S COM2 S T COM9 T U COM0 U CH3 U V CH2 V W CH9 W CH9 W X CH3 X COM3 X 2 GMCT20 BARE WIRE GMCT20 NI PXI 2585 NI PXI 2586 A CH6 A CH6 A B...

Page 12: ...2009 National Instruments Corporation All rights reserved 375861A 01 2009 8 300 V CAT II 400 A2 GMCT20 NI PXI 2586 12 A 2 GMCT20 GMCT20 499 g 17 6 oz GMCT20 BARE WIRE 748 g 26 4 oz 0 55 20 70 5 85 2 2...

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