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3;. .
INSTALLATION-CONFIGURATION
SECTION 100-816-203
MARCH 1993
DK8 WORKSHEET 3, PERIPHERALS AND UPGRADES (continued)
Miscellaneous Peripherals
HESB (Amplifier/Speaker): Total
1. One HESB and HHEU is required for each digital telephone with the Loud Ringing Bell feature.
2. One HESB is optional to provide single-zone external page connected to the KSU’s 600 ohm external page
output. (Customer-supplied amplifiers/speakers may be used in place of the HESB.)
3. One HESB is optional to provide a talkback amplifier/page speaker connected to the KSU’s 600 ohm external
page output. (Customer-supplied amplifiers/speakers may be used in place of the HESB.) Talkback requires
MDFB also.
DDCB/MDFB (Door Phone): Total DDCBs Total MDFBs
The MDFB plugs into the DDCB to provide a door phone. Each DDCB can support up to three MDFBs; a
maximum of two DDCBs and 6 MDFBs can be connected to the system. Each DDCB requires a digital tele-
phone circuit. The MDFB may also be connected to the HESB amplifier/speaker to provide page talkback.
NOTE:
Worksheet 4, System Power Check, is not required for DK8. The DK8 power supply will support any DK8
maximum configuration.
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