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2−25CM 4000 Installation and Operating Manual
UTAH SCIENTIFIC PARTY LINE CONNECTION USING UDI−1B
The CM 4000 can be connected to a Utah Scientific Party Line through a UDI−1B Universal Data Interface (see Figure 2−30).
Some UDI−1B units are equipped with a 9−pin RS−422 port; others are equipped with a 25−pin RS−232 port. Either type can
be used.
The protocol for the UDI−1B port must be set at: 9600 baud, 7 data bits, even parity, and 2 stop bits. The UDI−1B must be
equipped with software version 81.4 or later. The UDI−1B “AUX” rotary switch needs to be set to “E” for “PL−160 Mode”
and to enable all mode commands. Refer to the UDI−1B manual for detailed procedures.
Figure 2−30. Connection to Utah Scientific Party Line.
See Figure 2−31 for a description of this cable
Utah 96 protocol
RS−422 port
UDI−1B interface
to Utah Scientific switcher
Utah Scientific
Party Line
RS−232 port
See Figure 2−32 for a description of these cables
Utah 96 protocol
†
If the RS−232 port is used it is advisable to use an RS−422 to
RS−232 converter. A Black Box
model GJ−IC455B Inter-
face/converter is available from Grass Valley; part no.
05−040935−001.
RS−422/232
converter
†
House time
code
(optional).
See pg.
2−64
CM 4000 System
Controller
Serial Port
LAN