Shielded Cable Preparation - Garmin GI 275 Installation Manual

4.1.1

Shielded Cable Preparation

Prepare all of the shielded cables in accordance with Figure 4-1. When terminating shield drains, a
maximum of two shields can be daisy-chained together. The daisy-chaining method may only be used if
the six tapped holes in the shield block are insufficient to ground all shields.
1. At the end of the shielded cable, strip back a 2.5-inch maximum length of the jacket to expose the
braid.
2. Remove this exposed braid.
3. Carefully score the jacket 1/4 to 5/16 inches from the end and remove the jacket to leave the braid
exposed.
NOTE
Solder sleeves with pre-installed shield drains may be used instead of separate shield
terminators and individual wires.
4. Connect a 20 or 22 AWG wire (2) to the exposed shield of the prepared cable assembly. Refer to
Figure 4-1. Refer to AC 43.13-1B for termination techniques.
NOTE
Solder Sleeves with pre-installed lead: A preferred solder sleeve is the Raychem S03
Series with the thermochromic temperature indicator. These solder sleeves come with a
pre-installed lead and effectively take the place of items (2) and (3). For detailed
instructions on product use, refer to Raychem installation procedure.
5. Slide a shield terminator (3) onto the prepared cable assembly.
6. Connect the shield wire (2) to the shield using a heat gun approved for use with solder sleeves. The
chosen size of solder sleeve must accommodate both the number of conductors present in the cable
and the shield wire (2) to be attached.
7. Crimp contacts onto the cable wires.
8. Repeat steps 1 through 7 as needed for the remaining shielded cables.
9. Wrap the cable bundle with silicone fusion tape A-A-59163 (MIL-I-46852C) at the point where
the backshell strain relief and cast housing will contact the cable bundle.
10. Install a ring terminal onto the cable shield termination wires (2), grouping wires as applicable for
the connector.
190-02246-14
Rev. 11
GI 275 STC EIS & MFD Installation Manual
Page 4-3