Panasonic WJ-SX 150A manual Connection for RS-485 Type Camera, Home Run Wiring, Daisy Chain Wiring

■Connection for RS-485 Type Camera

There are two options to connect the camera with the matrix switcher, depending on the distance between them.

One is "Home Run" wiring and the other is daisy chain wiring. "Home Run" wiring has the transmission stability with less transmission loss, and daisy chain wiring has connec- tion flexibility with less data ports occupied. For data-multi- plex type cameras, 900 meters (3 000 ft) is the limit to use coaxial cable such as RG-59/U, BELDEN 9259 or equiva- lent.

Note: If more distance is required, use cameras and matrix switcher with RS-485 communication feature. Remote control becomes possible.

●"Home Run" Wiring

1.Connect with a RS-485 camera in "Home Run" wiring as shown in the figure.

2.Set the LINE SELECT switch to 2 or 4.

Notes:

•Before connecting RS-485 cameras to DATA1 to 3, data port setting through WJ-SX150A Administrator Console is necessary. (Refer to p. 96 Data Port.)

•Recommended for RS-485 communication is AWG#22 or thicker one. The cable should be shielded, two-wire, twisted pair, and with low impedance.

•Set the LINE SELECT switch to 4 when programming preset position of WV-CSR600/650 Series camera is connected to the unit.

RS-485 type camera

Set it to position 4.

	DATA HDR DATA 4	DATA 3 DATA 2	DATA 1	RS485(CAMERA)
				LINE
TERM
				2 SELECT 4
OFF	ON
	PS•DATA	RS485(CAMERA)
				Matrix Switcher

RS485 Port

Matrix switcher's rear panel

RB

RA

TB

TA

None	GND
TA	RB
TB	RA

(A)	OFF ON
(B)
GND

WV-CPR450 and others (For the Termination Switch positions, refer to the oprating instractions of the camera.)

Set it to position 2.

	DATA HDR DATA 4	DATA 3 DATA 2	DATA 1	RS485(CAMERA)
				LINE
TERM
				2 SELECT 4
OFF	ON
	PS•DATA	RS485(CAMERA)
				Matrix Switcher

●Daisy Chain Wiring

1.Draw up a plan for connection between the cameras and the input channels of the matrix switcher, and the assignment of unit addresses to cameras.

2.Set the LINE SELECT switch to 2. Also, set the connect- ed device's switch if required.

3.Connect one end of the cable to RS-485 (CAMERA), and the other end to the first camera in the chain, as shown in the figure. Repeat this procedure for all cam- eras.

4.Set the termination switches of the cameras at the chain ends to ON. Camera's termination switches must be set to OFF except the ones at the chain ends.

Notes:

•Set the same number for the camera's unit address as and CAMERA IN.

•Check the settings of the camera addresses when using RS-485 cameras. Operations from the system controller will be invalid if the camera addresses are set improperly.

•Do not use addresses other than 1 to 16 for individual cameras (More than 17 cameras are not allowed).

•Do not set the same address for more than one camera in an RS-485 chain.

•Termination is the key to data transmission and recep- tion in the chain. While the other switches are set to OFF, only the switches at the chain ends must be set to ON.

•The termination of this unit's RS-485 camera port is always set to ON. Connect the unit at the end of the daisy chain.

•The more equipment there is in the chain, the slower the response may be.

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