B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU AIR COND/CIDS/SDF/DIR2 ESS 49VU AIR COND/CIDS/SDF/DIR1 ESS  18WH 15WH  C06C05 
R  **ON A/C 106-149, 401-499,
 49VU COM/CIDS/DIR ESS/2  157RH  G02 
R  **ON A/C 106-149, 301-399, 401-499,
 49VU COM DIR ESS/1 49VU COM/CIDS/DEU A ESS/AFT R 49VU COM/CIDS/DEU A ESS/AFT L 49VU COM/CIDS/DEU A ESS/FWD R 49VU COM/CIDS/DEU A ESS/FWD L  150RH 172RH 179RH 158RH 159RH  G01HA12HA11HA10HA09
 **ON A/C 301-399,
 49VU COM / CIDS / DEU A ESS / MID R 49VU COM / CIDS / DEU A ESS / MID L 49VU COM/CIDS/DEU B/ESS 49VU COM DIR ESS/2 120VU COM / CIDS / DEU B / NORM FWD  196RH 195RH 153RH 157RH 193RH  G05G04G03G02M09 
R  **ON A/C 106-149, 401-499,
 121VU COM NAV/CIDS/DEU A NORM/R AFT 121VU COM NAV/CIDS/DEU A NORM/L AFT 121VU COM NAV/CIDS/DEU A NORM/R FWD 121VU COM NAV/CIDS/DEU A NORM/L FWD 121VU COM NAV/CIDS/DEU B/NORM 121VU COM NAV/CIDS/DIR NORM/2  168RH 167RH 164RH 163RH 162RH 156RH  M12M11M10M09M08M06
 **ON A/C 301-399,
 121VU COM NAV/CIDS/DEU A NORM/R FWD  164RH  M11 

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 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU COM NAV/CIDS/DEU A NORM/L FWD 163RH M10 121VU COM NAV/CIDS/DIR NORM/2 156RH M07 121VU COM NAV/CIDS/DIR NORM/1 151RH M06 
R  **ON A/C 106-149, 301-399, 401-499,
 122VU AIR COND/CIDS/SDF/DIR NORM/2 122VU AIR COND/CIDS/SDF/DIR NORM/1  14WH 17WH  T18T17
 **ON A/C 301-399,
 Subtask 23-73-43-865-053
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2001VU CIDS/DEU A NORM/ MID/ LH 197RH C04 2001VU CIDS/DEU A NORM/ MID/ RH 198RH C05 2001VU CIDS/DEU A NORM/ AFT/ LH 173RH C06 2001VU CIDS/DEU A NORM/ AFT/ RH 174RH C07 2001VU CIDS/DEU B NORM/ AFT 194RH C08 
R  **ON A/C 106-149, 301-399, 401-499,
 Subtask 23-73-43-010-050-A
 D. Get Access 
R  (1) FOR 309RH1, 309RH2 Put a STEPLADDER 0.5 M (1.6 FT) below the related access panel. 
R  (2) FOR 209RH1, 209RH2 remove the cove light panels 251ZW and 252ZW (Ref. TASK 25-23-48-000-001). 
R  (3) FOR 309RH1, 309RH2 remove the aft utility area - ceiling panel 261DF (Ref. TASK 25-23-42-000-002). 

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 4. Procedure
_________ Subtask 23-73-43-020-050
 A. Removal of the termination box 209RH and 309RH
 (Ref. Fig. 401/TASK 23-73-43-991-001, 402/TASK 23-73-43-991-002)

 NOTE : The removal procedure of the termination box 209RH and 309RH is
____
 the same. Only one procedure is given.

 (1)
 Release the spring latches (5) and disconnect the electrical connector (2) from the termination box (3).

 (2)
 Put blanking caps on the disconnected electrical connectors.

 (3)
 Pull the nylatches (4) and remove the termination box (3) from the decoder/encoder unit (1).

 (4)
 Make sure that you do not change the position of the coding switches and record them.

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 Termination Box DEU Type A/B - Component Location
 Figure 401/TASK 23-73-43-991-001

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 Termination Box DEU Type A/B
 Figure 402/TASK 23-73-43-991-002

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 Installation of the Termination Box
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific 1 STEPLADDER 0.5 M (1.6 FT)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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