Installation Guide for Industrial Electronic Engine Displays Caterpillar

The SAE J1939 data link is used in order to communicate the engine information to a J1939 display.

Connecting the J1939 Data Link

Table 1

Required Parts Installation of a Single Module
Part Number	Description	Qty
5P-6001	Heat Shrink Tubing	6 cm (2.4 inch)
125-7876	Heat Shrink Tubing	15 cm (6 inch)
133-0969	Connector Socket (Extended)	2
133-0970	Receptacle As (Tee)	1
174-3016	Receptacle As (Termination Resistor)	1
153-2707	Cable (Shielded Twisted Pair)	(1)
165-0200	Cable As	2
8T-8736 (2)	Connector Receptacle	1
174-0503	Connecting Plug Kit  (3)	1
186-3736	Connector Socket	4

( 1 )	Fabricated to length
( 2 )	The 8T-8736 Connector Receptacle for the service tool connector should only be used if one was not previously installed.
( 3 )	Use the blue wedge.

Table 2

Required Parts Installation of Each Additional Module
Part Number	Description	Qty
5P-6001	Heat Shrink Tubing	6 cm (2.4 inch)
125-7876	Heat Shrink Tubing	15 cm (6 inch)
133-0969	Connector Socket (Extended)	2
133-0970	Receptacle As (Tee)	1
153-2707	Cable (Shielded Twisted Pair)	(1)
165-0200	Cable As	1
174-0503	Connecting Plug Kit  (2)	2
186-3736	Connector Socket	4

( 1 )	Fabricated to length
( 2 )	Use the blue wedge.

Illustration 1	g00889188
Schematic for the J1939 Data Link

Illustration 1 shows the connection of modules to the J1939 data link. The following requirements must be met for installation of modules on the J1939 data link:

• 153-2707 Cable (Shielded Twisted Pair) must be used for all J1939 data link wiring. If the Caterpillar recommended cable is not used, the cable must meet J1939 standards.

Table 3

J1939 Specifications for Conductors
	Minimum	Nominal	Maximum
Impedance (ê)	108	120	132
Specific pF/m	0	40	75
Capacitance pF/m	0	70	110

• The total length of the data link must not exceed 40 m (130 ft).

• All splices into the data link require a 133-0970 Receptacle As (Tee).

• A 174-3016 Receptacle As (Termination Resistor) must be installed at the end of the data link in order to ensure proper operation.

Note: A termination resistor for the J1939 data link is included in the Caterpillar supplied wiring harness to the customer connector. One additional termination resistor must be installed at the end of the data link.

Use the following procedure to connect modules to the J1939 data link:

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Illustration 2	g00889189
Connecting the customer connector to a tee

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Illustration 3	g00779822
Connector sockets

1. Run the J1939 data link from the customer connector to a module.

   Note: The end of the data link must be within approximately 1 m (3.3 ft) of the module. The total length of the data link must not exceed 40 m (130 ft).

   1. Run 153-2707 Cable (Shielded Twisted Pair) from the customer connector to the location of the first module. Cut the cable to length.

   2. Remove 25 mm (1.0 inch) of insulation from both ends of the cable.

   3. Remove 7 mm (0.28 inch) of insulation from each end of the green wire and the yellow wire.

   4. Crimp a 186-3736 Connector Socket on each end of the green wire and the yellow wire with a 1U-5804 Crimp Tool .

   5. Crimp a 133-0969 Connector Socket (Extended) on each end of the shield with a 1U-5804 Crimp Tool .

   6. Cut two 30 mm (1.2 inch) pieces of 5P-6001 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over the shield at each end of the cable. Position the heat shrink tubing so that 1 cm (0.4 inch) of the socket is covered and the remaining tubing is covering the shield. Apply heat until a complete seal is formed around the shield and the socket. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   7. Cut two 50 mm (2 inch) pieces of 125-7876 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over each end of the cable.

   8. Insert the wires from one end of the data link into the customer connector. See Table 4.
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      Table 4

      Terminal Locations in the Customer Connector
      Wire Color	Location
      Shield	16
      Yellow	17
      Green	18

   9. Position the 125-7876 Heat Shrink Tubing so that 20 mm (0.8 inch) of the exposed wires are covered and the rest of the heat shrink tubing is over the cable. Apply heat until a complete seal is formed. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   10. Insert the sockets at the opposite end of the J1939 data link into a 174-0503 Connecting Plug Kit. See Table 5. Insert the blue wedge into the connector in order to secure the terminals in place.
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       Table 5

       Terminal Locations in the Plug
       Wire Color	Location in the Plug
       Shield	C
       Yellow	A
       Green	B

   11. Position the 125-7876 Heat Shrink Tubing so that 10 mm (0.4 inch) of the plug is covered and the rest of the heat shrink tubing is over the cable. Apply heat until a complete seal is formed around both the plug and the cable. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   12. Plug the end of the data link into the single end of a 133-0970 Receptacle As (Tee).

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Illustration 4	g00746640
Connecting from one tee to another tee

2. Run the data link from the tee to another tee for an additional module.

   Note: For installations of a single module, proceed to Step 3.

   Note: The end of the data link must be within approximately 150 mm (6 inch) of the module. The total length of the data link not exceed 40 m (130 ft).

   1. Run 153-2707 Cable (Shielded Twisted Pair) from the tee to the location of the next module. Cut the cable to length.

   2. Remove 25 mm (1.0 inch) of insulation from both ends of the cable.

   3. Remove 7 mm (0.28 inch) of insulation from each end of the green wire and the yellow wire.

   4. Crimp a 186-3736 Connector Socket on each end of the green wire and the yellow wire with a 1U-5804 Crimp Tool .

   5. Crimp a 133-0969 Connector Socket (Extended) on each end of the shield with a 1U-5804 Crimp Tool .

   6. Cut two 30 mm (1.2 inch) pieces of 5P-6001 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over the shield at each end of the cable. Position the heat shrink tubing so that 10 mm (0.4 inch) of the socket is covered and the remaining tubing is covering the shield. Apply heat until a complete seal is formed around the shield and the socket. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   7. Cut two 50 mm (2 inch) pieces of 125-7876 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over each end of the cable.

   8. Install a 174-0503 Connecting Plug Kit on each end of the cable. See Table 6. Insert the blue wedge into the connector in order to secure the terminals in place.
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      Table 6

      Terminal Locations in the Plug
      Wire Color	Location in Plug
      Shield	C
      Yellow	A
      Green	B

   9. Position the 125-7876 Heat Shrink Tubing so that 10 mm (0.4 inch) of the plug is covered and the rest of the heat shrink tubing is over the cable. Apply heat until a complete seal is formed around both the plug and the cable. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing. Perform this process on both ends of the cable.

   10. Plug one end of the new cable into one of the openings in the existing tee. Plug the other end of the new cable into the single end of a 133-0970 Receptacle As (Tee) for the additional module.

   11. If you are installing additional modules, repeat Step 2 for each module.

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Illustration 5	g00935709
Connecting a J1939 module

3. Connect a receiving module to the tee.

   1. Plug a 165-0200 Cable As into the 133-0970 Receptacle As (Tee).

   2. Cut a 50 mm (2 inch) piece of 125-7876 Heat Shrink Tubing. Slide the heat shrink tubing over the display connector of the cable assembly.

   3. Connect the three wires from the end of the cable assembly to the appropriate terminals on the plug for the module.

      Note: Refer to the appropriate topic for the display that is being installed for more information on connecting the display module.

   4. Repeat Step 3 for each module.

4. Connect the service tool connector.

   Note: If a customer supplied service tool connector is already installed, connect the J1939 data link to the existing connector.

   1. Run the 153-2707 Cable (Shielded Twisted Pair) from the last 133-0970 Receptacle As (Tee) to the service tool connector. Cut the cable to length.

      Note: The total length from the 133-0970 Receptacle As (Tee) to the Communications Adapter should be no more than 1.00 m (3.25 ft).

   2. Remove 25 mm (1.0 inch) of insulation from both ends of the cable.

   3. Remove 7 mm (0.28 inch) of insulation from each end of the green wire and the yellow wire.

   4. Crimp a 186-3736 Connector Socket on each end of the green wire and the yellow wire with a 1U-5804 Crimp Tool .

   5. Crimp a 133-0969 Connector Socket (Extended) on each end of the shield with a 1U-5804 Crimp Tool .

   6. Cut two 30 mm (1.2 inch) pieces of 5P-6001 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over the shield at each end of the cable. Position the heat shrink tubing so that 1 cm (0.4 inch) of the socket is covered and the remaining tubing is covering the shield. Apply heat until a complete seal is formed around the shield and the socket. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   7. Cut two 50 mm (2 inch) pieces of 125-7876 Heat Shrink Tubing. Slide a piece of the heat shrink tubing over each end of the cable.

   8. Insert the wires from one end of the data link into the service tool connector. See Table 7.
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      Table 7

      Terminal Locations in the Service Tool Connector
      Wire Color	Location
      Shield	C
      Yellow	G
      Green	F

   9. Position the 125-7876 Heat Shrink Tubing so that 20 mm (0.8 inch) of the exposed wires are covered and the rest of the heat shrink tubing is over the cable. Apply heat until a complete seal is formed. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   10. Insert the sockets at the opposite end of the J1939 data link into a 174-0503 Connecting Plug Kit. See Table 8. Insert the green wedge into the connector in order to secure the terminals in place.
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       Table 8

       Terminal Locations in the Plug
       Wire Color	Location in the Plug
       Shield	C
       Yellow	A
       Green	B

   11. Position the 125-7876 Heat Shrink Tubing so that 10 mm (0.4 inch) of the plug is covered and the rest of the heat shrink tubing is over the cable. Apply heat until a complete seal is formed around both the plug and the cable. Be careful to avoid skin contact with any hot glue that may seep from the heat shrink tubing.

   12. Plug the 174-0503 Connecting Plug Kit into the double end of a 133-0970 Receptacle As (Tee).

5. Connect a termination resistor to the tee at the end of the data link.

   1. Connect a 174-3016 Receptacle As (Termination Resistor) to the 133-0970 Receptacle As (Tee).