Philips Video Camera manual Two Multiplexer with Slave Keyboard Controller method

2.2.4 Two Multiplexer with Slave Keyboard Controller (method 2)

Power	Power	Power
24VAC	24VAC	24VAC

AWG #24

BNC

1st Main Monitor	Spot Monitor	Spot Monitor
	for Slave K/B	for Master K/B

BNC

BNC

1st Multiplexer	RS-485	(–) Pin No. 4
	RS-485	(+) Pin No. 6
J-Box (Back)	J-Box (Front)

	Rear
Keyboard controller	Keyboard controller
Master	Slave

2nd Main Monitor

BNC

2nd Multiplexer

Rear

Figure 8 - Two Multiplexer with Slave Keyboard Controller (method 2)

Spot output 1 of the first multiplexer to be connected to 16th input of the second multiplexer.

n:User, Spot out of nth to be connected to (17-n)thcamera input of the 2nd multiplexer. nth spot out of the 2nd multiplexer to be connected to the nth spot monitor. Each user will see the picture of the selected camera (1 ~ (31-n)) on nth spot monitor of the Mux 2 by selecting camera No. + Cam.

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