Accessory Installation
224
Installation
Installation includes mounting the SHJB, configuring interface operation, setting
mouthpiece muting, wiring the SHJB to a console, wiring the jackbox to parallel
jackboxes, and wiring the jackbox to a footswitch (optional).
Mounting
The SHJB can be mounted anywhere, but it is usually installed under the writing surface
of a dispatch station. Place it where it will avoid damage from chairs and spills, and where
it will not inconvenience personnel.
To mount the SHJB
1. Remove the top cover and secure it to the bottom of the writing surface using the
supplied screws.
2. Attach the body of the interface to the top cover.
3. Connect the case to the central earth ground.
4. Isolate the earth ground wire from signal lines.
Configuration
The SHJB circuit board is equipped with two jumpers (see
) to allow the
operation of the jackbox to be tailored to the installation.
Normally, if a headset is plugged into any of the headset jackboxes, transmissions from the
console will use the mouthpiece audio from all of the attached headsets. The person(s)
wearing a headset may not know that a transmission is taking place.
If each SHJB can be provided with its own transmit switch (such as a foot-switch or 6-
wire PTT headset), the jackboxes may be reconfigured to mute the mouthpieces of all
headsets not being used. Set JP6 to “A” to enable muting.
PTT Override
If each SHJB is provided with its own transmit switch (such as a foot-switch or 6-wire
PTT headset), PTT override operation may be used. When PTT override is enabled,
pressing PTT on the primary jackbox mutes the secondary jackbox transmit audio and
routes the primary jackbox audio to the transmitter allowing the primary jackbox user to
preempt (override) the secondary jackbox user.
If PTT override operation is desired, only two jackboxes can be used on each console
position, one primary and one secondary. Set JP1, JP3, and JP6 to position B to enable
PTT override.
Содержание 4000 Series
Страница 1: ...Series 4000 Communication Control System Installation and Configuration 025 9533Y...
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Страница 28: ...Introduction 28 025 9533Y...
Страница 88: ...Common Control Equipment Installation 88 025 9533Y Figure 22 Console Duplex Wall Jacks...
Страница 110: ...Common Control Equipment Installation 110 025 9533Y...
Страница 172: ...Console Installation 172 025 9533Y...
Страница 192: ...Audio Level Adjustments 192 025 9533Y...
Страница 230: ...Accessory Installation 230 025 9533Y...
Страница 236: ...Console ANI Programming 236 025 9533Y...
Страница 339: ...339 RSMP Operation Figure 99 Main Screen...
Страница 350: ...Radio System Management Program 350 025 9533Y...
Страница 362: ...Appendix B Troubleshooting 362 025 9533Y...
Страница 417: ...417 Index wiring accessories 164 wall jack 86 wiring diagram for M4219 244 X XMT button labels 332 XP settings 247...
Страница 418: ...Index 418 025 9533Y...