
1A2 TELEPHONES  | PUNCHDOWN  | 
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BLOCK  | 
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PAGE BUTTON  | 
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TIP  | 
  | (W/BL)  | 26  | 
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  | T  | (W/BL)  | ||
RING  | 
  | (BL/W)  | 1  | 
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  | R  | (BL/W)  | ||
LAMP  | 
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  | H  | (W/O)  | 
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LGND  | 
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  | DIR  | 
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  | (W/G)  | 
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BFT (W/S)
BFR (S/W)
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  | A1  | (R/BL)  | 
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  | A1  | (BL/R)  | 
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POWER SUPPLY  | (R/O)  | 32  | 
  | A2  | (R/O)  | 
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  | A2  | (O/R)  | ||
  | (O/R)  | 7  | 
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  | MT  | (R/G)  | ||
LAMP GROUND  | 
  | PG (R/BR)  | |||
  | MR  | (G/R)  | |||
  | OUT (BR/R)  | ||||
LAMP BATTERY  | 
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(V/BR)  | 49  | 
  | AG (V/BR)  | ||
A GROUND  | 
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(BR/V)  | 24  | 
  | AB (BR/V)  | ||
A BATTERY  | 
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(V/S)  | 50  | 
  | BG (V/S)  | ||
B GROUND  | 
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(S/V)  | 25  | 
  | BB (S/V)  | ||
B BATTERY  | 
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FIGURE 4
1A2 KEY SYSTEM LINE BUTTON ACCESS
WIRING INSTRUCTIONS
Place a check by each step as it is completed.
__ 1.  | Add a strap on the   | |
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  | block from Tip to BFT (W/BL to W/S).  | 
__ 2.  | Add a strap from Ring to BFR (BL/W to  | |
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  | S/W).  | 
__ 3.  | Add a strap from H to DIR (W/O to W/G).  | |
__ 4.  | Add a strap from DIR to Red/Blue (W/G to  | |
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  | R/BL).  | 
__ 5.  | Add a strap from Blue/Red to BG (BL/R to  | |
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  | V/S).  | 
__  | 6.  | Connect Tip of the   | 
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  | speaker assemblies to the   | 
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  | (R/BR) lead.  | 
__ 7.  | Connect Ring of the speakers to OUT  | |
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  | (BR/R).  | 
__  | 8.  | Connect the GND terminal of the speakers  | 
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  | (black lead of horns) to the power supply  | 
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  | Ground ("+" or "B Ground").  | 
__  | 9.  | Connect the   | 
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  | (white lead of horns) to the power supply  | 
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__ 10.  | Plug in the power supply.  | |
__ 11.  | Test the unit by connecting a lineman's test | |
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  | set across the   | 
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  | (a) Go "off hook" and speak. Your voice  | 
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  | should come out the speakers.  | 
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  | (b) If you hear the page: disconnect your  | 
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  | test set and go to step 12.  | 
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  | (c) If you do not hear the page:  | 
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  | (1) unplug the power supply;  | 
(2) go back to step 1 and recheck all your connections.
__ 12. 
__ 13. 
__ 14. 
  | button on all telephones.  | 
__ 15. Connect from the   | |
  | (O/R) to the power supply 10 Vac.  | 
__ 16. Test the system by pressing the page line  | |
  | button and speaking into the handset:  | 
__  | (a) If you hear the page and see a lamp on  | 
  | the phones go to step 17.  | 
__  | (b) If you do not get a lamp verify steps 14  | 
  | and 15 have been performed correctly.  | 
__  | (c) If you do not hear the page verify steps  | 
  | 12 and 13 have been performed correctly  | 
  | and all connections are good.  | 
__ 17.  | Adjust the volume controls on the individual  | 
  | speakers to the desired levels.  | 
__ 18.  | If background music is to be provided:  | 
__  | (a) Connect the music source to the  | 
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__  | (b) With the   | 
  | source volume control to provide the desired  | 
  | level at the speakers.  | 
7  | 947101  |