Icom IC-R8500 D DC 13.8 V and DC IN sockets, D REC REMOTE jack, D REC OUT jack, D PHONES jack, Dc

DDC 13.8 V and DC IN sockets

CONNECTOR INFORMATION 9

• DC IN

DC 13.8 V

4 1

[POWER] switch

Receiver

circuit

DC IN

Inner

Outer

Internal regulator circuit

Pin	Port name	Description
Inner	DC IN	Accepts connection to the AD-55A/V only
Outer	GND	Grounded.

• DC 13.8 V

Pin	Port name		Description
1	13.8 IN	13.8	V DC input; current consumption 2 A
2	12.5 OUT	12.5	V DC output when connecting AD-55/A/V
		to [DC IN] socket. Max. 2 A
3	NC	—
4	GND	Grounded.

DREC REMOTE jack

Outer

Inner

3.5 mm (diam.) 2-conductor

DREC OUT jack

Outer

Inner

3.5 mm (diam.) 2-conductor

DPHONES jack

Outer

Inner

Middle

6 mm (diam.) 3-conductor

Pin	Port name	Description
		• Grounded when squelch opens.
Inner	SQL	• Can be deactivated via initial set mode. (p. 31)
		• Max. current: 1 A/12 V DC
Outer	GND	—

Pin	Port name	Description
Inner	DET	• Output detected audio output.
		• 100–300 mV rms/4.7 kΩ
Outer	GND	Grounded.

Pin	Port name	Description
Inner,	Audio	• Outputs audio.
Middle		• Output impedance: 4–16 Ω
Outer	GND	Grounded.

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