Cloud Electronics Z4MK3 - Manual (Page 22)

Z4-8 MK3 Installation and User Guide 22
PCB jumper location and settings
The Z4 MK3 and Z8 MK3 have various internal jumpers, the setting of which may require alteration during installation. Note
that there are jumpers on both the motherboard and the individual zone sub-cards. The table below lists each jumper and its
purpose, together with the factory default setting. Note that options selectable by jumpers on the zone sub-board are per-zone,
and will need to be set on as many zone sub-boards as necessary.
JUMPER NAME EFFECT DEFAULT
MOTHERBOARD JUMPERS
J1 MIC 1 phantom power
OFF: MIC 1 phantom power OFF
ON: MIC 1 phantom power ON
OFF
J2 MIC 2 phantom power
OFF: MIC 2 phantom power OFF
ON: MIC 2 phantom power ON
OFF
J3 Paging Mic phantom power
OFF: paging mic phantom power OFF
ON: paging mic phantom power ON
OFF
J4 Music Mute N/O, N/C
N/O: contact closure required for muting
N/C: contact opening required for muting
N/O
ZONE SUB-BOARD JUMPERS
J1 Music source selection
SW: Follows rear panel switch
FR: Always via front panel only
SW
J2 Line 6 priority
OFF: No priority
ON: Line 6 has VOX-triggered priority over other sources
OFF
J3 Music ducking release time
3S: 3 seconds. release time
6S: 6 seconds release time
ABSENT: 12 seconds release time
3S
J4 Mic priority over facility input
OFF: No priority
ON: MIC 1, 2 & paging mic have VOX-triggered priority over signals at facility port
OFF
J5 Paging mic priority trigger
VOX: Paging mic signal triggers priority
SW: Contact closure at Access Port enables paging mic priority
VOX
J6 MIC 1/MIC 2 priority
OFF: No priority – mics mix with music
ON: Music ducks when mics in use
OFF
J7 Facility Port input noise gate
EN: noise gate enabled
DIS: noise gate inoperative
EN
J8 Emergency Paging mic priority override
EN: Paging Mic always has priority over other sources during Music Mute
DIS: No priority - all mic inputs are active during Music Mute
EN
The diagrams that follow show the locations of the internal jumpers (not to scale) on each of the board types. The jumpers have
two possible positions; the black square in the symbol indicates the default setting. If any jumpers need to be changed, turn the
Zone Mixer off and disconnect it from the mains. Undo the six screws securing the top cover of the unit and remove it. Use
a pair of small pliers to gently remove the jumpers from the PCB headers and reposition them. The jumpers on the zone sub-
boards are readily accessible from above; those on the motherboard will require long-nosed pliers. Refix the top cover using
the original screws.
The diagrams also show the locations of the socket for the optional loudspeaker EQ cards.