KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting a VP-1201 12x1 XGA Switcher / Scanner
26
5.5.2
Connecting Several VP-1201 Units – Input Expansion Configuration
You can cascade up to 8 interconnected
VP-1201
units to form an input
expansion configuration.
To connect several
VP-1201
units in the Input Expansion configuration (see
Figure 26), do the following:
1. Connect the video sources and acceptor
1
(see section 5).
2. Connect the RS-232 port on the first
VP-1201
unit to the PC using the
Null-modem adapter provided with the machine
2
(recommended see
section 5.2).
3. Connect the RS-485 terminal block port on the first
VP-1201
unit to the
RS-485 port on the second
VP-1201
unit and so on, connecting all the
RS-485 ports.
4. Interconnect the HD15F BUS connector and HD15F BUS LOOP
connector between the
VP-1201
units as follows:
Attach the Cable’ s first 15-pin HD connector to the 15-pin HD BUS
connector on the first
VP-1201
unit
Attach the Cable’ s second 15-pin HD connector to the 15-pin HD
BUS Loop on the second
VP-1201
unit
Continue attaching the 15-pin HD connectors on each
VP-1201
unit,
up to and including the last
VP-1201
unit
5. Set the dipswitches on the
VP-1201
units as follows:
Make sure that the CASCADE dipswitches on all machines are set to
the ON position
Set the MACH # on all units to the same number. For example, set
all the dipswitches on all the connected
VP-1201
units to MACH # 2
(according to Table 10)
Set the MACH. ADDR. dipswitches on the first
VP-1201
unit
(connected to the controller) to Machine Address 1. Set the following
units to Machine Address 2, Machine Address 3, and so on – up to
the last connected
VP-1201
unit (according to Table 9)
Set RS-485 TERM dipswitch ON on the first (Master) and last
VP-1201
units (Terminating the RS-485 line) and set OFF on the
remaining units
Set other dipswitches according to section 5.7.3 (SCAN) and section
5.7.5 (VALID ONLY)
1
Connect the acceptor to the output of any one of the connected units
2
Or connect via the ETHERNET port as section 5.6 describes
