Talkback Amplified Speaker Option - Toshiba strata CT Installation & Maintenance Manual

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C
Figure 6-13

Talkback Amplified Speaker Option

Strata CT I&M Manual October 2000
PIOUS
TB1
SPT
600Ω
Page SPR
Output
SPT (38, BK-GN)
PIOU or PEPU
SPR (13, GN-BK)
600Ω
Page
Output
25-Pair Cable
Jumper Wires:
TB1 TB2
1-2 3-4
5-8 5-6
6-7
Internal Wiring:
TBI Voice
3 3
4 4
Note
• The 600 ohm page output sends
three types of signals during
system operation:
• Voice page
• Background music
• Night ringing
HESB/Amplified Speaker Wiring
The talkback amplified speaker option enables a talkback speaker to be provided in areas
where a telephone is not needed. In this configuration, the HESB is connected to the PIOU,
PIOUS, or PEPU 600 ohm (duplex) output and is used as the amplifier and speaker.
A door phone unit (MDFB) is connected to the HESB, and serves as a microphone to provide
talkback operation. (The MDFB push-button is inoperative, and the unit serves only as a
microphone for talkback and not as the normal door phone.)
Note
The PIOU, PIOUS, and PEPU 600 ohm is a two-way (duplex) page output
compatible with most commercially available talkback amplifiers – door phone not
required for talkback.
MDF
Jacketed
Block Twisted
Pair
Pin NO.s
CW1308 0.5
1
25
26
50
MDF
Volume Control
Modular
1 2 3 4 5 6 7 8 9 10
Connector
May Be Used
6 5 4 3 2 1
Voice
12V 0V
1 2 3 4 5 6
12V
VDC
Power
Supply
Peripheral Installation
Note
Only one interface PCB
(PIOU, PIOUS, or PEPU)
may provide amplified
speaker output.
TB1
6 5 4 3 2 1
Not Used
Door Phone
TB2
0V
Jumpers
HESB (Rear View)
4303
240VAC to 12 VDC
6-23