DT Turn Up: NTP-003 363-205-401
Page 2 of 4 Issue 7, March 1997
DO ITEMS BELOW IN ORDER LISTED FOR DETAILS, GO TO
• That acceptance procedures for multiple DT arrange-
ments (common AC power source or pedestal) in this
volume have been performed (if required)
• That 900A1, 900A2, or 900A3 DT acceptance proce-
dures in this volume have been performed.
Obtain support apparatus listed below:
• Special key (allen-type wrench) - COMCODE 846244168
• J99407TA analyzer kit
• Cleaning swabs
• Bottle of isopropyl reagent alcohol with dispenser
• Can of compressed air
• DMM (digital multimeter) with an AC (true rms) and DC meter
accuracy of 1.0% and an AC and DC input impedance of ≥ 1
megohm.
2.
!
CAUTION:
An electrostatic discharge wrist strap with a minimum
resistance of 250K Ohms should be worn when handling
Series 5 circuit packs to prevent possible damage to the
circuit packs. Before using the wrist strap, check it for
opens, shorts, and minimum resistance value. If the strap
does not pass these checks it should not be used. To avoid
possible personal injury while using the wrist strap, do not
connect it to the power shelf or adjacent portions of the RT
frame. Connect the wrist strap to ESD GRD jack on the fan
unit, if present. If grounding jack is not present, connect
wrist strap to bare-metal section of the frame well away from
the power shelf.
NOTE:
Multiple DTs may be located in a cluster arrangement
enclosure or pedestal.
Unlock 900A1, 900A2, or 900A3 DT closure using special hex key
(allen-type wrench), if necessary.
3. Verify that 900A1, 900A2, or 900A3 DT
POWER
switch is set to
OFF
position.
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