3Overview
The unique VP-14xlRS-232 Port Extender distributes an incoming RS-232, RS-485 or USB command as transmitted by a touch screen control system, personal computer or other type of control system, to up to three RS-232 ports. This lets you control up to three compatible devices with only one serial port or RS-232 card.
The VP-14xlis specifically designed for use with Kramer switchers and routers, but can be used with any other equipment which employs RS-232.
In particular, the VP-14xlfeatures:
•One RS-232 input port
•One RS-485 input port
•One USB input port
•Three RS-232 output ports
•Operation in either Hardware or Software mode
•DIP-switches to determine the source of the reply command when the VP-14xlis in hardware mode
•DIP-switches to determine the machine number when operating in Software mode and there are multiple VP-14xlunits on the RS-485 bus
•DIP-switches to determine the serial port baud rate (see Section 6.3)
In Hardware mode, the:
•VP-14xlroutes the reply from the output port defined by the DIP-switches 2, 3 and 4 (see Section 6.2)
•RS-232 data is passed from any input to all outputs
In Software mode, the VP-14xlroutes the data and reply based on the Protocol 2000 commands received from the PC or other device connected to any of the inputs (RS-232, RS-485 or USB), see Section 8.
To achieve the best performance, we recommend:
•Connecting only good quality connection cables, thus avoiding interference, deterioration in signal quality due to poor matching, and elevated noise levels (often associated with low quality cables)
•Avoiding interference from neighboring electrical appliances that may adversely influence signal quality and positioning your VP-14xlin a location free from moisture and away from excessive sunlight and dust
!Caution: No operator serviceable parts inside the unit
Warning: Use only the Kramer Electronics input power wall
adapter that is provided with the unit
Warning: Disconnect the power and unplug the unit from the wall before installing
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