Nortel DMS-100 Series Maintenance Manual page 689

Testing wrist strap grounding cords
At your current location
1 Obtain an ohmmeter.
2
Detach the grounding cord from the wrist strap.
3 Measure the resistance between opposite ends of the grounding cord with
the ohmmeter.
If resistance
is between 800 kohms and 1200
kohms
is not between 800 kohms and
1200 kohms
4 You can use the grounding cord and wrist strap assembly. Assemble the wrist
strap to the grounding cord.
Go to step 6.
5 Discard the complete assembly. Do not attempt to use the assembly.
6 The inspection procedure is complete.
OPM routine maintenance procedures
Testing wrist strap grounding cords
DANGER
Risk of electrocution
The grounding cord is safe to use if the cord resistance
measures higher than 800 kilohms. A lower resistance
exposes the person that wears the wrist strap to the risk of
electrocution if equipment short-circuits.
WARNING
Damage to electronic equipment
A grounding cord that has a resistance higher than 1200
kilohms cannot conduct enough static charges to ground
adequately. The cord does not protect sensitive electronic
equipment against build-ups of static charges that can cause
damage
DMS-100 Family OPM Maintenance Manual XPM14 and up
Do
step 4
step 5
13-87
OPM
(end)