Aiphone LDF-40C, LDF-20C manual LDF Loudspeaker Master Station with External Control Capability

Specia l

Ord e r

Prod u c t s

LDF

LDF Loudspeaker Master Station with External Control Capability

LDF-20C LDF-40C

LDF-20CA LDF-40CA

- LDF SUPPLEMENT TO LAF-C/CA INSTRUCTIONS -

The LDF Loudspeaker Intercom and External Control System is designed for communication between a central master station and remote intercom stations. The LDF is an expanded feature version of the LAF-C/CA system. All information regarding installation other than the external control functions is included in the LAF-C/CA instructions. In addition to communication to remote locations, external devices can be activated, such as activating a CCTV camera when the associated sub station is selected, selectively controlling the corresponding door strike or maglock, or both.

WIRING DIAGRAM: SYSTEM USED FOR CCTV CAMERA CALL-UP

LDF-20CA

1

2

3

~

20

E

-

External

Terminal Block

LS-NVP
Red	LS-NVP	LE-DA
	Red
		1
Blk	Blk	E
Grn	Grn	-

NOTE:

Leave jumper between E & - on master and subs when using 2 conductor homerun wiring IN SINGLE MASTER SYSTEM ONLY. Jumper BLK/GRN wires at LS-NVP in 2-wire system.

1		RY-PA							CONSTANT CLOSURE:
	BLK			YEL		Constant Closure for Station #1			Normally Open contacts remain closed as
		#1
2									long as master has sub station selected.
					RY-PA
			BLK				YEL	Constant Closure for Station #2
					#2

3

BLK

RY-PA

YEL

Constant Closure for Station #3

~

#3

PS-12C

20

L

Terminal Block

DUAL FUNCTIONS FROM EACH CHANNEL:

+

+

-

-

1

BLK

RY-PA

YEL

Momentary closure #1

Equipment for each station that requires

#1

both a constant closure and momentary

RY-PA

closure when a channel is selected:

BLK

YEL

Constant closure #1

L

#2

2 RY-PA relays

2 Diodes (1N4001)

2

RY-PA

Momentary

BLK

#1

YEL

closure #2

LDF Master

RY-PA

Individual Components for System:

BLK

Constant

+

#2

YEL

closure #2

LDF-nC

Master station with selective contact output capability (20, 40)

-

LDF-nCA

Master station w/handset and selective contact output capability (20,

40)

LD-20AS

20-call Add-on Selector with selective output capability

LD-40AS

40-call Add-on Selector with selective output capability

RY-PA

Relay for selective output (1 per station requiring external contact)

PS-12C

12V DC, 1A Power Supply

LE-series

Any model sub station with LE-prefix

LDF TERMINAL DEFINITIONS:

LS-NVP

Vandal proof sub station (add SBX-NVP for surface mount)

+

Positive 12V DC input, and constant closure output

-

Negative

IMPORTANT:

1~40

Station number

1. RY-PA must be used for each additional contact to

E

Common communication

isolate AC voltage from the intercom circuit.

R

Occupied LED control

2. Extra contact connections and L are on separate

L

Positive output for selective closure

terminal block. LDF-40C/CA has two terminal blocks.

(Located on terminal block)

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