Dynacord DPM 4000 manual Block Diagram

DEVICE DESCRIPTIONS

Pin-Assignment Of DPC 4000 Connectors And The Extension Cord:

Connecting DPC 4000 paging stations to the DPC 4000 IN connector is established through the use of common RJ-45 extension cords, where the conductors are twisted in pairs as follows: pair 1 = 1/2 (24 V/GND), pair 2 = 3/6 (free), pair 3 = 4/5 (RS-485), pair 4 = 7/8 (AUDIO).

AUDIO IN -		DPC 4000 IN		RJ- 45	extension	cord
		8
AUDIO IN +			AUDIO		8
RS- 485	-				7
RS- 485	+		RS- 485		6
		1			5
GND					4
+ 24V					3
			24V/GND		2
					1

figure 5.8 pin-assignment of the DPC 4000 connectors, RJ-45 extension cords

The RS-485 bus may not exceed a maximum length of 1,000m (mind the voltage drop for operation voltage) and must follow a line-structure (short stub cables are permissible). Twisted-pair wiring is of special importance.

Using IY(ST)Y wiring is allowable (38400 Bd, 9N1)

Block Diagram:

	ELECTRONIC
	PROGRAMMABLE			+U24
	FUSES
				+12V	ANALOG
				-12V	SUPPLY
DPC 4000				+5V	DIGITAL
IN A					SUPPLY
24V				RX485
RS-485
AUDIO				TX485
NRS 90208				INTERNAL MONITOR
	MON A			PILOT
	A			MCLK
PILOT A				BCLK	2 CHANNEL
				WCLK	DIGITAL
	D				AUDIO
				DIN
PILOT B
		BOARD	4	SPI
	MON B
		CONTROL
DPC 4000
IN B
24V				RES
RS-485
AUDIO
NRS 90208		BOARD
		STATUS
		& ID

figure 5.9 block diagram 2-channel paging station module

PROANNOUNCE System User Handbook 1.1 5-9