ZETRON 4000 Series, Installation Manual

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Secondary Headset Jackbox
Table 86: SHJB Jumper Settings
Wiring to Console
The Secondary Headset Jackbox plugs easily into any of the consoles. The 9-pin, D-type
connector, J2 (“Console”), at the rear of the jackbox provides the signals to the console.
Use the supplied 9-pin cable to connect the jackbox to the console at the console headset
connector.
Wiring to Additional Jackboxes
If more than one jackbox is to be installed for a single console, only one Secondary
Headset Jackbox connects to the console. Additional jackboxes must connect in a daisy-
chain fashion to the initial jackbox at connector J1 (“Expansion”), at the rear of the
jackbox. If either the standard headset jackbox (Part # 950-9327) or the TRHI (Part # 950-
9439) will be connected, it must be the last jackbox in the daisy chain. When multiple
Secondary Headset Jackboxes are used, connect J2 of one box to J1 of the preceding box.
Wiring to Footswitch
Connector TB2 (“Footswitch”) is used to wire a footswitch to the headset jackbox. Wire
the switch across the terminals labeled “GND” and “PTT”.
Console Programming
To assure proper routing of headset mouthpiece audio when the “soft” console transmit
buttons (such as INSTANT XMIT and SITE ICOM) are used, the console must be
programmed through CPSW. The following menu items must be selected: Edit, Position
#, Miscellaneous, Audio Source
for “soft” xmit keys, Spare Input #9 steered.
JUMPER OPERATION
JP1 A* = Normal
B = PTT Override (JP3=B) (JP6=B)
JP2 Position 'A'/Hardwired
JP3 A* = Normal
B = PTT Override (JP1=B) (JP6=B)
JP4 Position 'B'/Hardwired
JP5 A* = 6-Wire
B =4-Wire
JP6 A* = Mute Enable
B = Mute Disable
* Factory jumper settings.
Caution!
Do not install a four-wire plug into an SHJB configured for six-
wire operation; the console may unexpectedly transmit on the
selected channel.
!