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Peripheral Installation
External Speaker Unit (HESB) Options
12-22 Strata CTX I&M 06/04
³ To test the amplified speaker option
1. Make an external page. The page should be heard over the HESB.
2. Verify that someone speaking into the door phone can be heard at the paging station. (With this
application, pressing the door phone button is not required to talk back through the door
phone.)
Figure 12-22 Amplified Page Speaker with HESB Interface
Jumper Wires:
BIOU
600Ω
Page
Output
BIOU switch SW600
must be in the
SPO position
MDF
66 Block
SPT (38, BK-GN)
SPR (13, GN-BK)
25-Pair Cable
Jacketed
Twisted
Pair
24 AWG
TB1
1-2
5-8
6-7
TB2
3-4
5-6
Modular
Connector
May Be Used
Volume Control
TBI
3
4
Voice
3
4
Internal Wiring:
6 5 4 3 2 1 6 5 4 3 2 1
Not Used
Voice
12V 0V
Note
• The 600 ohm page output sends
three types of signals during
system operation:
• Voice page
• Background music
• Night ringing
12345678910
TB1
Door Phone
123456
TB2
HESB (Rear View)
12V
VDC
0V
Jumpers
5470
115 VAC (± 10 VAC) to 12 VDC
Power
Supply