51
Configuring Channel Cards
operation. Switching between COR and VOX operation is a software configuration item.
See
Tone/Local Software Configuration
There is also an Enhanced Call Detection mode available that provides a more precise call
detection method, provided certain requirements are met. For more information, see
Busy Transmit Inhibit
Each channel may be configured to allow or inhibit transmission on a “Busy” channel (see
). A channel is “Busy” whenever its cross-busy-input (X-Busy In) is activated by
a locally paralleled control point, or when its line-operated-transmit-lamp (LOTL) is
activated by a remotely paralleled control point.
Usually, inhibiting while busy is desired
to prevent confused communications and to keep proper line terminations and levels.
However, when line conditions cause falsing of the LOTL, it is desirable to be able to
transmit even while busy.
Table 15: Dual Channel Card, Busy Transmit Inhibit Switch
Duplex
Each channel may be configured for full duplex or simplex operation (see
). Full
duplex operation requires a 4-wire system and allows the dispatcher to transmit and
receive simultaneously (like a telephone). Simplex (or half-duplex) operation may either
be a 2- or 4-wire system, and allows the dispatcher to transmit or receive but not both
simultaneously. This switch-selectable option prevents dispatchers in full duplex operation
from hearing themselves, and thus prevents feedback. Each DCC has the same option.
Note
Only one console within the CCE may transmit on a channel at a
time. Each Dual Channel Card has the same option.
Channel A
Busy Transmit
Switch Position
Busy Transmit Inhibit
“BTI” (switch 5) On
Busy Transmit OK
“BTI” (switch 5) Off*
Channel B
Busy Transmit
Switch Position
Busy Transmit Inhibit
“BTI” (switch 1) On
Busy Transmit OK
“BTI” (switch 1) Off*
* factory default
Содержание 4000 Series
Страница 1: ...Series 4000 Communication Control System Installation and Configuration 025 9533Y...
Страница 6: ...6 025 9533Y...
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...