3M 103 12R1-00 Series User manual

3
Instructions
For the Assembly of the 68, 80, 100 Position MDR
103XX-12R1-00 and 103XX-12S1-00 Metal Junction
Shells for Pleated Foil Cable and 101XX-6000 Series
MDR Plug.
General:
The 103XX-12R1-00 MDR Junction Shells provide
grounding, EMI/RFI shielding, thumb screw retention, and
strain relief .
Kit Contents:
4 each M2.5 flat head thread
cutting screws
2 each Metal shell halves
2 each Thumb screws
2 each Elastomer gaskets
2 each Metal strain reliefs
NOTE: Kit 103XX-12S1 does
not include the elastomer
gasket material. Contact 3M for details.
Tools Needed:
• 3430-7000 Hand Tool (Scribe)
• Straight edge (Metal ruler)
• Philips screwdriver (No. 1 point head)
• 4000-2000 Cable Splitter
• 3640 or 3335 Assembly Press
NOTE: Because of the torque/pressure involved with
using the thread cutting screws, make sure the
recommended No. 1 pt. Philips screwdriver is used.
Cable Preparation
The cable, shield, and jacket should be trimmed to the
recommended dimensions shown in Figure 2.
• 3/4" cable should be exposed.
• 1/4" pleated foil should be exposed.
• 1/2" cable jacket should be trimmed along the side.
After terminating the connector to the cable, the assembly is
ready to be installed in the junction shell.
Assembly
1. Place the top half of the junction shell next to the bottom
half, with the inside of each half facing up. See Figure 3.
• The top half of the shell has four holes on the side with
the 3M logo.
• The bottom half of the shell has no holes on the side with
the 3M logo. See Figure 4.
2. Insert the Elastomer Gasket in both halves as shown in
Figure 5. (Gasket material in vertical position.)
3. Insert the metal strain reliefs, with flat side facing up as
shown in Figure 5.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
1-1/2"
1/4"
Bottom Half Top Half
3/4"1/2"

The strain relief for the top half of the junction shell was
designed to be held in place using the following steps:
Place a flat block of metal, for extra height, on the base of
the 3640 or 3335 Assembly Press. See Figure 7a.
• Adjust the press so the shaft will come down on the plated
“dimple” on the junction shell at each end of the strain
relief. This will press the strain relief into position.
See Figure 6b.
• Do the opposite end next.
• Make sure the strain relief is in place by picking the shell
up and turning it over.
• If the strain relief does not stay in place, repeat the above
steps.
4. Place the connector/cable
assembly in the bottom half
of the shell, making sure
the “connector locating
tabs” in the Junction Shell
mate to the slots in the
connector body.
See Figure 8.
IMPORTANT:
The Pleated Copper Foil
should be resting on top of
the Elastomer Gasket.
5. Place the top half of the
shell over the bottom half,
making sure the connector
latching tabs are secure in
the connector body.
See Figure 9.
6. Using the recommended
screw driver, insert the flat
head screws into the front
of the junction shell and
turn but do not tighten.
See Figure 10.
7. Slide the two thumb screws
into position, one on each
side of the shell.
See Figure 11.
8. Insert the two remaining
screws then tighten all four
screws. See Figure 12.
Caution: Because of the
amount of torque involved,
it is recommended that this
assembly be done on a flat
surface. DO NOT hold the
junction shell in your hand
while using a screwdriver.
Figure 13 shows a complete
Metal Junction Shell.
Figure 9
Figure 10
Figure 6b
Figure 7bFigure 7a
Figure 6a
Figure 8
Figure 11
Figure 12
Figure 13
Electronic Products Division
6801 River Place Blvd.
Austin, TX 78726-9000
http://www.mmm.com/epd
Litho in USA
© 3M 1997 34-7041-4687-6
3
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products are based on information believed to be reliable, but the accuracy or
completeness thereof is not guaranteed. Before utilizing the product for its
intended use. The user assumes all risks and liability whatsoever in
connection with such use.
Any statements or recommendations of the Seller which are not contained in
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warranties are hereby expressly disclaimed.
SELLER SHALL NOT BE LIABLE TO THE USER OR ANY OTHER PERSON
UNDER ANY LEGAL THEORY, INCLUDING BUT NOT LIMITED TO
NEGLIGENCE OR STRICT LIABILITY. FOR ANY INJURY OR FOR ANY
DIRECT OR CONSEQUENTIAL DAMAGES SUSTAINED OR INCURRED BY
REASON OF THE USE OF ANY OF THE SELLER’S PRODUCTS THAT WERE
DEFECTIVE.
Important Notice
Thumb Screws
Dimple
Slots Connector
Locating
Tabs
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Phone: [phone]
Fax: [phone]
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