RJSML8MF1 Managed Switch UM, rev A
Page 7 of 13
Last Rev: 27-Jul-15
Amphenol
– 948, Promenade de l‘Arve – B.P. 29 – 74311 THYEZ Cedex – France - +33(0)4.50.89.28.00 – www.rjswitch.com
Backshells
We suggest using TVNSA backshells with corresponding heat shrinks. See previous page
for part numbers.
These backshells, providing an electrical continuity between cable and connector, ensure a
high level or of EMI/RFI protection. The sealing is ensured by straight heat shrink molded
piece at the rear of the backshell. NSA and SA backshells ensure the shielding by clamping
the braid with a screwing system. The free inner ring avoids twisting of the braid during
screwing.
Heat-shrinks are molded pieces for harsh environment, fluid resistant (with preinstalled
adhesive).
TVNSA backshell dimensions
Switch
model
Plug size
A length
mm (in)
A thread
Metric
B max
mm (in)
C max
mm (in)
Ø E max
mm (in)
Ø G max
mm (in)
All models
9 (A)
35.60
(1.402)
M12x1.0
-6H
16.70
(0.658)
6.90
(0.272)
15.62
(0.615)
16.50
(0.650)
TVNSA backshell assembly instruction
1. Prepare the cable for termination process and slide
onto the cable the items in the order shown on figure 1.
2. Screw the backshell at the rear of the connector.
3. Fold back the braid on the outer jacket and fix it
(figure 2).
4. Install the braid as shown on figures 3 and 4:
Release the braid and cover the backshell (a) and the
connector’s shell. Slide the first ring (b) over the braid.
Fold back the braid on the ring (b) and slide the second
ring (c) over the braid and the first ring (b). Screw the
last ring (d) at the rear of the backshell. If necessary, fix
the extra braid on the outer jacket of the cable. If this
installation (double folding of the braid) is not possible,
refer to figure 5: Slide the first ring (b).
Release the braid and cover the backshell (a) and the
connector’s shell. Cut the braid as shown. Slide the
second ring (c) over the braid and the first ring (b).
Screw the last ring at the rear of the backshell.
5. Install the heat-shrink molded piece.