KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting a VP-1201 12x1 XGA Switcher / Scanner
24
5.5 Connecting Several VP-1201 Machines
For certain applications, you may need more than just 12 inputs. Cascading
VP-1201
units enables you to expand the number of inputs.
You can cascade:
Up to 16 individual
VP-1201
units in an Individual Control configuration
(see section 5.5.1)
For example, 16
VP-1201
units, connected via RS-232 and RS-485, will
operate separately: forming 16 12x1 separate machines (see Figure 25)
Up to 8 interconnected
VP-1201
units in an Input Expansion
configuration (see section 5.5.2)
For example, 3
VP-1201
units interconnected in this configuration will
form a 36x1 machine (see Figure 26)
5.5.1
Connecting Several VP-1201 Units – Individual Control Configuration
To cascade up to 16 individual
VP-1201
units (see Figure 25), do the following:
1. Connect the video sources and acceptors as section 5 describes.
2. Turn ON the power (not illustrated).
3. Connect the RS-232 port on the first
VP-1201
unit to the PC using the
Null-modem adapter provided with the machine (recommended), as
section 5.2 describes
1
.
4. 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.
5. Set the Machine dipswitches as follows:
Set the CASCADE dipswitches on all units to OFF
Set the first
VP-1201
unit MACH. # dipswitches to Machine # 1 and
the following units to Machine # 2, Machine # 3, and so on – up to
the last connected
VP-1201
unit (according to Table 10)
Set the 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 the other dipswitches according to section 5.7.3 (SCAN) and
section 5.7.5 (VALID ONLY)
1
Or connect via the ETHERNET port as section 5.6 describes
