UHF1 (400
–
470 MHz)
Interface Definition
41
Pin
No.
Name
Type
Signal Electrical
Performance
Description
three accessory identification
statuses. Please refer to the
“
below for detailed
function definitions.
14 Emerg Sw
Digital input 5V TTL
Emergency switch. This pin is
valid when low level is input.
15 ACC_IO3
Digital input 5V TTL
Accessory identification interface;
high level by default. This pin and
Pin 13 (ACC_IO2) can compose
three accessory identification
statuses. Please refer to the
“
” below for detailed
function definitions.
16 PRGM_IN_PTT Digital input 5V TTL
Programmable input pin (
PTT
key of external Mic by default; its
function is programmable via
CPS). It is valid at low level.
17 Audio Ground
Audio
(grounding)
/
/
18 SPK+
Analog
signal
output
It forms differential output
together with SPK-. Max
power output: 10 W(R=8
Ω)
External speaker
19 D-
USB data
cable-
USB data
USB data cable-
20 GP5_8
Digital
input/output
5V TTL
GPIO. Programmable via CPS.
21 Ground
Ground
/
/
Содержание MD78X
Страница 1: ...DIGITAL MOBILE RADIO SERVICE MANUAL...
Страница 5: ...UHF1 400 470 MHz...
Страница 14: ...UHF1 400 470 MHz Exploded View and Packing Guide 7 3 2 Packing Guide...
Страница 56: ...UHF1 400 470 MHz Interface Definition 49 Pin No Name Description 39 GND Grounding 40 PWB_IN Power On Off signal...
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Страница 64: ...MD78X MD78XG PCB View Main Board Top Layer 57...
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Страница 111: ...UHF2 450 520 MHz...
Страница 120: ...UHF2 450 520 MHz Exploded View and Packing Guide 7 3 2 Packing Guide...
Страница 167: ...54 9 PCB View MD78X MD78XG PCB View Front Panel Top Layer...
Страница 168: ...55 MD78X MD78XG PCB View Front Panel Bottom Layer...
Страница 169: ...MD78X MD78XG PCB View Main Board Top Layer 56...
Страница 170: ...MD78X MD78XG PCB View Main Board Bottom Layer 57...
Страница 216: ...UHF3 350 400 MHz...
Страница 225: ...UHF3 350 400 MHz Exploded View and Packing Guide 7 3 2 Packing Guide...
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Страница 321: ...UHF5 806 941 MHz...
Страница 330: ...UHF5 806MHz 941MHz Exploded View and Packing Guide 7 3 2 Packing Guide...
Страница 376: ...53 9 PCB View MD78X MD78XG PCB View Front Panel Top Layer...
Страница 377: ...54 MD78X MD78XG PCB View Front Panel Bottom Layer...
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Страница 379: ...56 MD78X MD78XG PCB View Main Board Bottom Layer...
Страница 414: ...VHF 136 174 MHz...
Страница 423: ...VHF 136MHz 174MHz Exploded View and Packing Guide 7 3 2 Packing Guide...
Страница 468: ...PCB 52 9 PCB View MD78X MD78XG PCB View Front Panel Top Layer...
Страница 469: ...PCB 53 MD78X MD78XG PCB View Front Panel Bottom Layer...
Страница 470: ...MD78X MD78XG PCB View Main Board Top Layer 54...
Страница 471: ...PCB 55 MD78X MD78XG PCB View Main Board Bottom Layer...