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1-5
ROUTING SWITCHER SYSTEM (E)
1-2. System Control
*1 : When one of the BKPF-300 series is set in a primary station, it can control up to 30 units (including the primary station).
*2 : It means a switcher which is set the M/S switch on CPU board to “M” position. In the case of BKPF-R70, the switch is set to “P”
position.
*3 : It means a switcher which is set the M/S switch on CPU board to “S” position.
1-2-2. S-BUS control
The S-BUS control is a remote control system. It has a simple connection structure and provides highly
efficient communication. Multiple routing switchers and remote control units are connected to a single
bus line to form a control network called the S-BUS data link. The units on this S-BUS data link commu-
nicate with each other using the S-BUS protocol, select the necessary data from the control data transmit-
ted through the data link, and operate according to the data.
The routing switchers on the S-BUS data link are designated to a primary station which controls the
whole system (only one unit is set as this) and secondary stations. The primary station receives the
instructions from the secondary stations and makes adjustments for smooth communication. It also
constantly monitors the system and detects communication errors and problems. In addition to adjusting
and controlling communication, the primary station also switch crosspoints as another switcher does.
The S-BUS line is connected via the REMOTE 1 connector. Up to one line can be connected for BKPF-
300/301/350/351, two lines for DVS-V1616, three lines for DVS-V3232B/V6464B, BKPF-R70 and
HDS-V3232, and four lines for other switchers. Always terminate unused connectors with 75 Z.
Features of S-BUS control system
The main features of the S-BUS control are as follows.
. LAN type control signal communication using one 75 Z coaxial cable (S-BUS line).
. The coaxial cable can be extended to 500 m. (BELDEN 8281 cable or equivalent)
. The primary station can control up to 254 units (including the primary station)
*1
of routing switchers
and remote control units using multiple S-BUS lines.
. Up to 128 units of routing switchers and remote control units can be connected to one S-BUS line.
Without stopping the system, the switchers and remote control units can be connected to the S-BUS
line or removed from it.
. The self-diagnosis results of the system can be monitored with the control terminal connected to the
primary station.
Basic configuration of S-BUS control
S-BUS control is configured as follows.
Name Equipment Quantity Function
Primary station Routing switcher (M)
*2
1 Communication control in data link.
Secondary station Remote control unit and routing 253 max. Use data link in the time specified
switcher (S)
*3
from the primary station.
Control terminal Personal computer with terminal 1 Setting needed for system configuration
software and displaying the status.