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179
Overview
Figure 34: DCC Adjustments, Test Points, and Indicators
950/702-xxxx
Dual Channel Card Part Number
Channel B
Channel B Test Points
o
TX
Transmit audio, before adjustment. 2.2Vpp max
o
Not used
o
AGC
AGC’d Receive audio. 2.2 Vpp max
o
RX
Pre-AGC Receive audio
o
GND
Signal Ground
B
Channel B Level Adjustments
4W o RX
Four-Wire Receive Level
2w o RX
Two-Wire Receive Level/TX Monitor Level
o TX
Transmit Level
Channel A
Channel A Test Points
o
TX
Transmit audio, before adjustment. 2.2Vpp max
o
Not used
o
AGC
AGC’d Receive audio. 2.2 Vpp max
o
RX
Pre-AGC Receive audio
o
GND
Signal Ground
A
Channel A Level Adjustments
4W o RX
Four-Wire Receive Level
2w o RX
Two-Wire Receive Level/TX Monitor Level
o TX
Transmit Level
Channel B
Channel B Status Indicators
O
CALL
Green CALL. On while VOX activity
O
LOTL
Red Line-Operated-TX-Lamp. On while remote console Xmiting *
O
BSYIN
Red BUSY-IN. On while local parallel console Xmiting
O
XMIT
Red XMIT. On while this channel is transmitting
Channel A
Channel A Status Indicators
O
CALL
Green CALL. On while VOX activity
O
LOTL
Red Line-Operated-TX-Lamp. On while remote console Xmiting *
O
BSYIN
Red BUSY-IN. On while local parallel console Xmiting
O
XMIT
Red XMIT. On while this channel is transmitting
o
+5V
+5 volt (approximately) Audio Supply Test Point
o
GND
Audio Supply Ground
o
-5V
-5 volt (approximately) Audio Supply Test Point
* FCN/GT test points are present only on Tone Control DCC. LOTL is present on Local Control DCC.
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...