UTMC OTU/MOVA Handbook
667/HB/31601/000
Page 14
Issue 5
2.3 UTMC OTU HARDWARE VERSIONS
The part number of the UTMC OTU is 667/1/31601/ETC. The following variants are
available:-
/004 = UTMC OTU FREE STANDING NO RACK
/014 = UTMC OTU SEMI INTEGRAL NO RACK
/311 = 11" UTMC OTU - 11" RACK - NO MODEM TRAY 3U MTG 0DBP
/319 = 19" UTMC OTU - 19" RACK NO MODEM TRAY 3U MTG 0DBP
/511 = 11" UTMC OTU - 11" RACK + 2U MODEM TRAY 5U MTG 0DBP
/519 = 19" UTMC OTU - 19" RACK + 2U MODEM TRAY 5U MTG 0DBP
The most common variant is the /519 which has the following features:-
Mounts in standard 19" wide OTU space within the controller cabinet.
The 2U modem tray provides flexible space for different communications options,
with 13A socket for modem power.
Mounting space for detectors in the rack if required
OTU can be configured for semi-integral (with a ST700/750/800/900 family
controller) or freestanding via I/O card.
The outstation is mains powered and is fitted with a battery to support the unit in the
event of a mains failure. Assuming the communication equipment is still powered, this
allows the outstation to remain in communication with the instation when the mains
fails.
The complete unit can fit within a standard Traffic Controller’s Roadside Cabinet or
within a single enclosure. It is designed to fit within an existing 3U detector rack, in an
additionally supplied 3U rack, or directly onto the rack mounting uprights. It can be
mounted in an ancillary housing if necessary.
When fully configured, the unit occupies 192mm of a standard 3U rack, and is of a
modular design. The cards are interconnected by way of an expansion bus and up to 3
IO cards may be fitted. The main features of each individual card, assembly and the
expansion bus are highlighted in the following sections.