Nikon RADIUS CM200 Bedienungsanleitung PDF herunterladen (Seite 53)

Accessory Connector Pin Function 6-5

2.0 Accessory Connector Pin Function

Pin Function Description

1 External Speaker (-) Connect external 8 or 4 ohms speaker to pin 1 and 16.

Caution: Bridge-type output. Neither pin 1 or 16 is grounded.

2 External Mic Audio Input impedence:500 ohms

80 mV rms at 1 kHz for 60% deviation.

This path is enabled when external mic PTT is keyed.

3 External Mic PTT Put this pin low (less than 0.66 Vdc) to key transmitter and enable

external mic audio path. This path is pulled low via a diode when front

panel mic PTT is pulled low to allow sensing of mic PTT by accessory.

This pin pulled high to 3.3 Vdc via 3.3k ohms

4 Programmable

Output

Defaults to External Alarm. Provides an active high to 13.8 Vdc battery

supply, maximum current: 0.15 amps. CAUTION: Do not short to ground,

this may damage the radio.

5 Flat_TX_Audio Input Input impedance: Greater than 35k ohms. The nominal input level is 150

mV rms for 60% deviation.

6 SCI Serial Communication Interface. This pin can be configured as a general

purpose input by removing resistor R421.

7 Ground Used as ground.

8 Programmable I/O Input or output depending on dealer programming.

9 Emergency Input When connecting the Emergency Footswitch between pin 9 and 7, the

radio will sense the connection upon Power-up.

Shorting this pin to Ground by pressing the switch when the radio is OFF,

turns ON the radio in Emergency Mode.

Shorting this pin to Ground by pressing the switch when the radio is ON,

activates Emergency Mode.

To turn OFF a radio that was turned ON by Emergency Footswitch (ON/

OFF knob in OFF position) turn knob to ON and then to OFF position.

10 Ignition Sense For optional 3-wire ignition control, connect this pin to the vehicle

ignition-controlled voltage source for ignition-controlled radio ON/OFF.

To resume NON ignition state, remove the battery connection for 10

seconds; remove the ignition connection from this pin and re-connect the

battery connections.

11 Receive Audio

Output

Programmable (using CPS in the RX Audio Type): 660mV rms (de-

emphasized/muted) or 330mV rms (non de-emphasized muted.

Minimum load resistance: 5k ohms

12 Programmable I/O Input or Output

13 Switched B+ (Switched Battery Voltage) 13.8Vdc (500mA max.) when radio is ON

14 Programmable I/O Input or Output

15 Internal Speaker Connect to internal speaker (+) and by internal jumper to pin 16

16 External Speaker (+) Connect external 8 or 4 ohms speaker to pins 1 and 16.

CAUTION: Bridge type output. Neither pin 1 nor 16 is grounded.

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