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724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 35
Chapter 4: On-Screen Display
Example of DCP synchronization
ServSwitch 4site Flex 2 and 3 are synchronized with ServSwitch 4site Flex 1.
Serial Y Cable
Control unit
Console Mouse Console Keyboard
ServSwitch 4site Flex 1
ServSwitch 4site Flex 2
ServSwitch 4site Flex 3
RX
RX
RX
TX
TX
TX
Figure 4-21. DCP synchronization example.
To synchronize, ServSwitch 4site Flex 1 sends every change in settings as a DCP message via the serial Y to the RX input of
ServSwitch 4site Flex 2.
ServSwitch 4site Flex 2 adopts the settings and sends a DCP message via TX output over the Y cable to the RX input of
ServSwitch 4site Flex 3.
The synchronization chain can be any length.
Do not connect the last device in the chain to the first device (that is, do not create a loop).
Security Levels
The security level settings in the OSD menu previously described also apply to control via DCP messages. Queries are possible up
to Security Level 7.
Table 4-1 shows the maximum security levels for simple element settings. These settings may be changed via DCP up to the
specified protection level.