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FOR CLARITY, INTERNAL EQUIPMENT IS NOT
FOR CLARITY, INTERNAL EQUIPMENT IS NOT
SHOWN.
SHOWN.
380.00
190.00
37.50
301.00
Installing the Network Gateway Unit (Continued)
Preparing the Back Box
1 Remove and retain the four screws that secure the front cover. Disconnect
1 Remove and retain the four screws that secure the front cover. Disconnect
the cover earth lead from the blade on the cover. Place the cover in a
the cover earth lead from the blade on the cover. Place the cover in a
protective bag and store safely.
protective bag and store safely.
2 At the back box, disconnect the chassis earth lead from the blade terminal.
2 At the back box, disconnect the chassis earth lead from the blade terminal.
3 Remove and retain the 4 nuts and washers that secure the chassis to the
3 Remove and retain the 4 nuts and washers that secure the chassis to the
back box, and remove the chassis together with the electronics mounted
back box, and remove the chassis together with the electronics mounted
on it. Place in anti-static bag and store safely.
on it. Place in anti-static bag and store safely.
Note: All blade connections to earth incorporate a locking barb. To make a
Note: All blade connections to earth incorporate a locking barb. To make a
connection push the shrouded receptacle on to the earth blade (A). To
connection push the shrouded receptacle on to the earth blade (A). To
remove this connection, pull the shroud (B), NOT the earth wire.
remove this connection, pull the shroud (B), NOT the earth wire.
Fitting the Back Box to the Wall
Wall Flatness
Wall Flatness
To prevent distortion, the back box MUST be installed on the wall as flat as
To prevent distortion, the back box MUST be installed on the wall as flat as
105.00
possible, i.e. with a maximum flatness deviation between any two points of
possible, i.e. with a maximum flatness deviation between any two points of
3mm. Where the wall is out of tolerance, use appropriate packing pieces when
3mm. Where the wall is out of tolerance, use appropriate packing pieces when
installing the back box to meet the above requirements.
installing the back box to meet the above requirements.
Failure to comply with this requirement will result in the misalignment of
Failure to comply with this requirement will result in the misalignment of
the cover's securing screws, which may cause difficulties in fitting the
the cover's securing screws, which may cause difficulties in fitting the
cover.
cover.
All dimensions are in millimeters. Fixing hole diameters are 6mm.
All dimensions are in millimeters. Fixing hole diameters are 6mm.
Procedure
Procedure
When a suitable location has been found for installing the back box, and the
When a suitable location has been found for installing the back box, and the
Network Gateway Module electronics have been removed, fix the back box to
Network Gateway Module electronics have been removed, fix the back box to
the wall as follows:
the wall as follows:
! !
1 Using a suitable-sized drilling bit - for holes to take up to 6mm (No. 12-
1 Using a suitable-sized drilling bit - for holes to take up to 6mm (No. 12-
sized) wood screws - drill a hole at position A in the wall. Fit a suitable-
sized) wood screws - drill a hole at position A in the wall. Fit a suitable-
sized wall-plug, or equivalent.
sized wall-plug, or equivalent.
2 Hold the back box in position at hole A (ensure the panel is level) and mark
2 Hold the back box in position at hole A (ensure the panel is level) and mark
the position of the remaining fixing holes (B). Remove the back box and
the position of the remaining fixing holes (B). Remove the back box and
store safely.
store safely.
3 Drill two holes at positions B in the wall, and fit suitable-sized wall-plugs, or
3 Drill two holes at positions B in the wall, and fit suitable-sized wall-plugs, or
equivalent.
equivalent.
4 Prepare apertures (20mm knockouts) required for cable access. Make
4 Prepare apertures (20mm knockouts) required for cable access. Make
sure paint is scraped from the area surrounding the knockouts, to ensure
sure paint is scraped from the area surrounding the knockouts, to ensure
good earthing for glands, or use earth termination kit 020-453 (see
good earthing for glands, or use earth termination kit 020-453 (see
previous page for mounting position). Use the 2 top front knockouts for
previous page for mounting position). Use the 2 top front knockouts for
fibre-optic cables.
fibre-optic cables.
5 Secure the back box to the wall using all three fixing holes and
5 Secure the back box to the wall using all three fixing holes and
appropriate-sized screws (up to 6mm [No. 12-sized] round or pan-head
appropriate-sized screws (up to 6mm [No. 12-sized] round or pan-head
screws - do not use countersunk screws).
screws - do not use countersunk screws).
6 If a PSU3A is to be fitted, follow the procedure given on the next page.
6 If a PSU3A is to be fitted, follow the procedure given on the next page.
7 Reverse the 'Preparing the Back Box' procedure to refit all items except
7 Reverse the 'Preparing the Back Box' procedure to refit all items except
the cover. Ensure chassis earth connections are made correctly.
the cover. Ensure chassis earth connections are made correctly.
8 If an RS232 or Fibre-optic PCB is to be fitted, follow the appropriate 'Fitting
8 If an RS232 or Fibre-optic PCB is to be fitted, follow the appropriate 'Fitting
Optional PCBs' procedure given on following pages.
Optional PCBs' procedure given on following pages.
9 Refit the cover (ensure earth lead is connected).
9 Refit the cover (ensure earth lead is connected).
2
DO NOT use the back box as a guide when drilling.
DO NOT use the back box as a guide when drilling.
997-451, Issue 6 July 2006
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