MZC-88 Installation Instructions Page 13
7. VIDEO PAGE IN — One, RCA jack provides input for composite video from doorbell paging systems, cameras or
other composite video sources. This jack is programmable in EZ-Tools, to turn on as an event, when triggered by the
DOORBELL/STATUS IN Jacks, item 8.
8. DOORBELL/STATUS IN 1 & 2 — Two, 3.5mm mini jack trigger inputs work in conjunction with the PHONE/VIDEO
PAGE IN jacks, items 6 & 7. When triggered, the Phone and/or Video inputs can be turned on in selected zones as
programmed in EZ-Tools. If Audio or Video paging is not required, these jacks can also be programmed as STATUS
INPUTS for power management of Source or Zone components.
POLARITY: TIP= +V; SLEEVE=GND. INPUT VOLTAGE:
3-30V AC or DC to trigger the ON condition. Voltage must drop below 1V AC or DC for OFF.
9. COMMON IR OUTPUT — One, 3.5mm mini jack outputs all IR commands from IR sensors and Keypads regardless of
zone origin. POLARITY: TIP=SIGNAL; SLEEVE=GND.
10. HI/LO SWITCH — One, two position switch, sets high or low IR power output to the Common IR Output jack. Set to
the
LO setting when driving standard low power emitters (SpeakerCraft IRE-1.0, 2.0, 3.0 and 4.0). Set to HI when driv-
ing a high power emitter (SpeakerCraft IRE-5.0 Blaster) for teaching IR commands into learning remotes. HI OUTPUT:
110mA; LO OUTPUT: 13mA. CAUTION: The HI position will smoke low power emitters!
11. COMMON STATUS OUT — One, 3.5mm mini jack will go high (+12V DC) when any zone is turned ON and will go
LOW (under 1V DC) when the last zone is turned OFF.
POLARITY: TIP=+12V DC; SLEEVE=GND. MAX OUTPUT: 100
mA at 9.5V DC.
12. STATUS IN — Six, 3.5mm mini jack trigger inputs primarily used for power management of common source compo
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nents that do not have discreet IR ON/OFF codes. These jacks sense constant voltage to determine the ON/OFF state
of the sensed component. Typically, a current sensing device with a 12V DC output would be used to let the MZC-88
know when a component is ON or OFF. The MZC-88 will then appropriately send or not send an IR ON/OFF toggle
command to that component when that source is selected or when the system is being shut down. ON/OFF condi
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tions are programmed in EZ-Tools as Keypad macros or system events. When not used for power management, these
jacks can be used to trigger events such as IR macros, switch closures and initiate RS232 commands.
POLARITY:
TIP=+V; SLEEVE=GND. INPUT VOLTAGE: 3-30V AC or DC to trigger the ON condition. Voltage must drop below 1V
AC or DC for OFF.
13. FM/AM/75
Ω — One, F-type terminal, connects to a SpeakerCraft HED-1.0 Masthead Amplifier. The HED-1.0 should be
located away from the system components to reduce RF interference and improve reception. FM Dipole and AM Loop
antennas connect to the HED-1.0. The HED-1.0 connects to the MZC-88 via RG6 coaxial cable terminated with F-type
connectors on runs up to 100’.
CAUTION: Do not connect an antenna directly to this terminal. There is DC voltage
present to power the HED-1.0. This voltage will interfere with antenna performance and possibly cause electrical short if
not terminated properly.
14. IR OUT (Source) — Six, 3.5mm mini jacks, one per Source, output IR commands to external common source com
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ponents. When a source is selected, from a keypad or remote control, IR commands are routed directly to that source.
This allows selective control of multiple same-brand, same-model source components (multiple Satellite Receivers, DVD
Players etc).
POLARITY: TIP=SIGNAL; SLEEVE=GND.
15. IR LOOP — Six, 3.5mm mini jacks, one per Source, provide connections for an IR signal path for external common
source components, when using multiple MZC-88s in expanded systems. i.e. If using two MZC-88s, the SOURCE IR
OUTS on the MZC Slave unit would connect to the appropriate SOURCE IR LOOPS on the MZC Master unit to pass
Source IR commands between controllers from expanded zones. The IR OUTS on the Master connect to IR EMITTERS
attached to the source components for source IR control from all zones.
POLARITY: TIP=SIGNAL; SLEEVE=GND.
16. L, R & V INPUT (Source Left/Right Audio & Video Input) — Eighteen RCA jacks, three for each Source, provide
left and right line-level audio and composite video signal inputs for up to six external common source components.
17. L,R & V LOOP (Source Left/Right Audio & Video Loop) — Eighteen, RCA jacks, three per Source, provide buffered
left and right line-level audio and composite video outputs that are typically used to loop Source A/V signals to addi
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tional zone inputs on Slave MZC-88’s in expanded systems. i.e. The L, R, V LOOP on the MZC Master would connect to
the appropriate L,R,V INPUT on MZC Slave 1. Slave 1 would then loop to Slave 2, etc. These outputs can also be used
to drive local components, such as a local surround receiver, when not used for expansion.
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