POD9 — Video Switcher

Input Impedance (6) 75 ohm Input Level 1 Vp-p, nominal Input Return Loss 46 dB Typical, @ 3.58M Output Impedance (2 splits) 75 ohm Output Level 1 Vp-p, terminated Response better than 0.05dB @ 3.58M Differential Gain better than 0.1% @ 3.58M Differential Phase better than 0.1deg @ 3.58M Crosstalk better than 60dB, @ 3.58M S/N better than 60dB, 5MHz B.W.

Power Requirements 115 VAC,60Hz (available upon request) 230 VAC,50Hz Dimensions 8.69" wide x 1.73" high x 7.0" deep (221mm x 44mm x 178 mm) Weight 1.37 kg (3.01 lbs)

SERIAL PROTOCOL

1) REQUEST STATUS

ACTION: Two bytes are sent

1st byte 11110000

2nd byte 00000000

RESPONSE: 1st byte (POD9 Status)

1 X X X X X X X

X=0 Slave switch not activated ────┘[6 5 4 3 2 1]

X=1 Slave switch activated └── Video Inputs 1 through 6

X=0 Video source not selected

X=1 Video source selected

2nd byte (POD2 Status)

0 X X X X X X X

X=0 Sum switch not activated ────┘[6 5 4 3 2 1]

X=1 Sum switch activated └── Audio Inputs 1 through 6

X=0 Audio source not selected

X=1 Audio source selected

2) SUM AUDIO

Action: Two bytes are sent

1st byte 1 1 1 1 0 0 0 0

2nd byte 0 1 X X X X X X

[6 5 4 3 2 1]

└── Audio Inputs 1 through 6

X=0 Audio source not selected

X=1 Audio source selected

RESPONSE POD9 will send back the same status bits as shown in the REQUEST STATUS command.

NOTE: To cancel SUM MODE send command F0, 80 (HEX) followed by desired switch command,

3) SWITCH AUDIO AND VIDEO

Action: Two bytes are sent

1st byte 1 1 1 1 0 0 0 0

2nd byte 1 0 X X X X X X

└── Audio Input 001➩110 (1➩ 6) └───── Video Input 001➩110 (1➩ 6) RESPONSE POD2 will send back the same status bits as shown in the REQUEST STATUS command. NOTE: If switching from SUM MODE send command F0, 80 followed by the desired switch command.

4) SLAVE AUDIO AND VIDEO

Action: Two bytes are sent

1st byte 1 1 1 1 0 0 0 0

2nd byte 1 1 0 0 0 X X X

└── Input 001➩110 (1➩ 6)

RESPONSE POD2 will send back the same status bits as shown in the REQUEST STATUS command.

NOTE: The Slave indicator on POD9 may be turned on by sending the command F0, C0 (HEX) and turned off by F0, C7 (HEX).

GPI

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The communication protocol is detailed on the following pages

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