Peripheral Installation
External Speaker Unit (HESB) Options
6-26
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
DK40 KSU
123456
12V 0V
HESB (Rear View)
240 VAC to 12 VDC
Notes
• The 600 ohm duplex page output is
compatible with most
commercially available talkback
amplifiers. – MDFB not required.
• PIOU/PIOUS/PEPU Page Outputs
do not operate.
Jumpers
Voice Door Phone
12V 0V
TB2
12345678910
TB1
6 5 4 3 2 1 6 5 4 3 2 1
Modular
Connector
May Be Used
12L1 L2
Volume Control
Jumper Wires:
TB1
1-2
TB2
3-4
5-6
Jacketed
Twisted
Pair
CW1308
0.5mm
MDFB (Rear View)
1 2 L1 L2
Door Phone
Talkback
Microphone
1515
Power
Converter
654321
Western Electric
4 or 6 Way LJU
Jacketed Twisted Pair (CW1308 0.5mm)
Figure 6-14 HESB/Talkback Amplified Speaker Wiring