Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 12 Page 17 of 265
1.4.2 Required Tools
In addition to a standard Engineer’s tool kit, the following tools are required when
carrying out any work on the ST900 Controller:
1.5 Abbreviations
AC Alternating Current
CLF Cableless Linking Facility
CLS Central Light Source
DC Direct Current
DFM Detector Fault Monitor
ELV Extra Low Voltage
EPROM Erasable Programmable Read Only Memory
FT Fixed Time
GPS Global Positioning System
HPU High Power Unit (for ELV Controllers)
I/G Inter-green
I/O Input/Output
IC4 Intersection Configurator version 4 (UK controller configuration application)
IMU Integral Monitoring Unit (see IRM)
IRM Integral Remote Monitoring (aka London Monitoring Unit or IMU)
KOP Kit of Parts
LED Light Emitting Diode
LMF Lamp Monitor Facility
LMU Lamp Monitor Unit
LPU Logic Power Unit
LRT Light Rail Transit
LRV Light Rail Vehicle
LSLS Lamp Switch Low-Voltage Serial
LV Low Voltage (Mains)
mA milliamps
MDU Mains Distribution Unit (for Mains Controllers; not ELV)
MOVA Microprocessor Optimised Vehicle Actuation
ms milliseconds
MTCS Master Time Clock System
OMU Outstation Monitor Unit
OTU Outstation Transmission Unit
PCB Printed Circuit Board
PROM Programmable Read Only Memory
RAM Random Access Memory
RFL Reset Fault Log (Handset Command)
Part Number
T-bar key 667/2/20234/000
S-18 key – Main Cabinet or 4/MC 289
Serial handset Techterm, or 667/4/13296/001
Old Oyster handset, or 667/4/13296/000
Larger Screened Oyster handset 667/4/13296/002
Manual Panel key Type 900 667/4/13651/000