Nortel DMS-100 Series Maintenance Manual page 737

Wrist strap grounding cords test
At the OPAC site
1 Remove the grounding cord from the wrist strap.
2
DANGER
Risk of electrocution
The grounding cord is safe to use only if the resistance
of the cord measures higher than 800 kilohms. A
lower resistance can cause electrocution if equipment
short-circuits while the user wears the wrist strap.
WARNING
Damage to electronic equipment
A grounding cord that has a resistance higher than
1200 kilohms cannot conduct static charges to ground
correctly. This cord does not protect sensitive
electronic equipment against build-ups of charges that
can damage the equipment.
Measure the resistance between opposite ends of the grounding cord with the
ohmmeter.
If resistance
is between 800 kΩ and 1200 kΩ
is not between 800 kΩ and 1200 kΩ
3 Remove the whole assembly. Do not attempt to use the assembly.
4 Replace assembly as soon as possible.
Go to step 1 for new assembly.
5 You can use the grounding cord and wrist strap assembly. Assemble the wrist
strap to the grounding cord.
6 This procedure is complete.
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Routine maintenance procedures 13-89
Wrist strap grounding cords test Wrist strap grounding cords test
Do
step 5
step 3
OPAC OPAC
(continued) (end)