Identification
The motoryokes are
identified
by a number on the identification plate as follows:
MB – XX
MB
=
Motoryoke. On every motoryoke identification plate.
XX
=
ST:
Type: Studio yoke
R:
Type: tube yoke
SH:
Type: Show yoke
D1: Type: Flexible in width
DY:
Type: One point connection (YipMan)
The DMX-standard in lighting
Because of many problems with
analogue
data-signals from the control panels to the
dimmers the DMX-standard was developed in 1990. DMX only needs
two
wires to control
up to 512 dimmers digitally. On the other hand, the old analogue method needs one wire
for every dimmer. Many kilometers of cable have been saved.
The DMX-signal is based on the industrial
RS485
interface. It is designed for maximum
lengths up to 1200m. Normally this length is under condition in theatre or studio
not
possible
(strong electrical fields because of the HMI lamps). As a result of internal tests
we recommend a maximum length of
200m
(only DMX line, 5pin). On every DMX
transmitter a maximum of 32 DMX receiver can be connected. All devices must be
connected in a
row
(cabling from A to B, from B to C, from C to D etc.). The last device in
such a row must be terminated with a resistor (470 Ohm). If more than 32 devices should
be connected a booster or
splitbox
must be inserted.
A
splitbox
is a device with one DMX input and several DMX outputs. The signal is
refreshed. Thus it is possible to use different DMX lines.
The reliability of data transmission was increased because of using DMX. One of the
greatest advantages is universally usefulness. Now devices from different manufacturers
can be controlled by every control panel.
Motoryoke YipMan1 V4.58 Rev 1.00 11
