H. Interphone Handsets **ON A/C 001-049, 101-105,
 (Ref. Fig. 036) **ON A/C 051-099,
 (Ref. Fig. 036A) **ON A/C 151-199,
 (Ref. Fig. 036B) **ON A/C 201-210,
 (Ref. Fig. 036C) **ON A/C 211-299,
 (Ref. Fig. 036D) **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
 (1) Description
 (a) General Each attendant station is equipped with a handset 330RH for PA and interphone dialling and communication. The flight compartment is equipped with a handset 130RH for PA use only. Handset 330RH rests in a cradle 332RH, and handset 130RH in a cradle 132RH.
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 Cabin Handset Figure 036 
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 Cabin Handset
 Figure 036A 
R 1EFF :  051-099,  1  23-73-00 Page A18 
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 Cabin Handset
 Figure 036B 
R 1EFF :  151-199,  1  23-73-00 Page A19 
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 Cabin Handset
 Figure 036C 
R 1EFF :  201-210,  1  23-73-00 Page A20 
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 Cabin Handset
 Figure 036D 
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 **ON A/C 001-049, 051-099, 101-105, 201-299,
 (b) Function The handsets and cradles provide these functions:
 -
the hook-off sensing,

 -
the Press-To-Talk (PTT) switching,

 -
the PA announcements,

 -
the single-key call-activation via integral keypad,

 -telephone conversation (cabin handset 330RH only).
 **ON A/C 151-199,
 (b) Function The handsets and cradles provide these functions:
 -
the hook-off sensing,

 -
the Press-To-Talk (PTT) switching,

 -
the PA announcements,

 -
the single-and double key call-activation via integral keypad,

 -telephone conversation (cabin handset 330RH only).
 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
 (c) Architecture
 Both handset types contain:

 -
the microphone unit which includes a pre-amplifier,

 -
the earphone,

 -
the push-to-talk switch,

 -
the handset support bracket including a permanent magnet. The cabin handset 330RH also contains:

 -
a keyboard with 12 touch keys,

 -
a tone dialling interface circuit.

 **ON A/C 001-049, 101-105,
 (d) Cabin Handset Keyboard The handset has 9 keys arranged on a 3 x 3 matrix, the keys are used for:
 -Emergency call: push the EMER CALL pushbutton switch
 -Flight compartment call: push the CPT pushbutton switch
 -All attnd call: push the ALL ATTND pushbutton switch
 -FWD attnd call: push the FWD ATTND pushbutton switch
 -
AFT LH attnd call: push the AFT L ATTND pushbutton switch

 -
AFT RH attnd call: push the AFT R ATTND pushbutton switch

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 -PA ALL: push PA ALL pushbutton switch
 -Service Int: push the SVCE pushbutton switch
 -Clear handset operation: push RESET.
 **ON A/C 051-099,
 (d) Cabin Handset Keyboard The handset has 12 keys arranged on a 3 x 4 matrix, the keys are used for:
 -Emergency call: push the EMER CALL pushbutton switch
 -Flight compartment call: push the CPT pushbutton switch
 -All attnd call: push the ALL ATTND pushbutton switch
 -FWD attnd call: push the FWD ATTND pushbutton switch
 -
AFT LH attnd call: push the AFT L ATTND pushbutton switch

 -
AFT RH attnd call: push the AFT R ATTND pushbutton switch

 -
PA ALL: push PA ALL pushbutton switch

 -
PA FWD: push PA FWD pushbutton switch

 -Clear handset operation: push RESET.
 **ON A/C 151-199,
 (d) Cabin Handset Keyboard The handset has 12 keys arranged on a 3 x 4 matrix, the keys are used for:
 -Cockpit call: push the CAPT pushbutton switch
　
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