Tel: +44 (0)2380-246900 sales@verotec.co.uk
33
KM6-II Subracks: Accessories
KM6-EC
compatible
Detail of grounding strip requirements
on a standard Eurocard -
wiring and/or component side
PCB GrOundInG ClIP
This grounding clip can be inserted into the front or rear of
1,6mm pcb guides in KM6-II and KM6-EC subracks.
Features
Electrostatic Protection
Occupies ‘unused’ area of Eurocard
No screws required
Contacts on the clip provide electrical continuity between a suitably equipped
Eurocard and, via a spring under the clip to standard front extrusions. Pcb’s can,
therefore, be grounded before the engagement of connectors. The clip, which
is supplied in packs of 10, fits into a ‘pocket’ in the guide and requires no screw
fixings to maintain contact.
The modification required to the pcb takes the form of a conductive strip along the
edge of the board, either on the left or right side (see illustration).
The clip has been tested to IEC 950: 1986 section 2.5.11. In testing, the clip reached
a steady temperature of 76 degrees C at 15A, with a resistance path of 7mΩ.
A typical electrostatic discharge would be 12A for a period of 1 microsecond.
It should be noted that the clip is designed to provide a ground path for
electrostatic charges, not for a power short circuit or as a ground rail.
Contents of kit
Description Material/Finish
Grounding clip 0,15mm spring steel plated
Ordering information
Description Qty. Order code
Grounding clip pk 10 950-251366F
POsItIve GuIde retentIOn – taPPed strIPs
All KM6-II guides, with the exception of the 2,4mm slot version, can be bolted
down to a tapped strip in the front extrusion to give shock and vibration resistance.
Tapped strips (supplied singly) should be selected by subrack width.
The screw used is M2,5 x 5mm cheesehead, supplied in a packet of 100.
Ordering information
Description: Positive guide retention
Type Width Qty. Order code
42HP 1 173-12706H
Standard 84HP 1 173-12704C
24HP 1 950-202799L
Universal 42HP 1 950-202739G
60HP 1 950-202740L
84HP 1 950-202001E
Security fixing screws M2,5 x 5 100 173-202579H
Note: for other widths and for divider kits, a longer strip should be cutdown to suit.
0.5
0.5
(160) (160)
2.76
0.5
153.67 (153.67)
70
1.5
2.5
5
Screw retention of guides in a KM6-II subrack
Tapped strip
Rear Rear
Component side Component side
ESD contact breaks before
connector engagement
ESD contact maintained during
connector engagement
PCB ESD Contact strips top / bottom
PCB Grounding clip
Positive guide retention – tapped strips
