Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 11 Page 136 of 265
15.3 Control and Reply Bits
UTC Control Bits UTC Reply Bits
Bit Section Title Bit Section Title
F1,
F2…
15.3.1 Forces
G1,
G2…
15.3.2 Stage confirm
DX 15.3.3 Demands: Common
SD1,
SD2…
15.3.4 Stage demand confirm
D1,
D2…
15.3.3 Demands: Stage
PX 15.3.3 Demands: Ped str’m WI 15.3.6 Wait indicator confirm
PV 15.3.5 Ped str’m hold vehicle
GX,
PC
15.3.6 Ped str’m confirms
SF1,
SF2
15.3.7 Switch facility
SC1,
SC2
15.3.8 Switch facility confirm
SO 15.3.9 Solar override SC 15.3.10 Solar override confirm
SG 15.3.11 CLF group sync. CS 15.3.12 CLF group sync. confirm
LO 15.3.13 Lamps on / off
LE 15.3.14
Lamps off
FR 15.3.15 Signals flashing
LL 15.3.16 Local link inhibit LC 15.3.17 Local link inhibited
FM 15.3.18 Fall back mode FC 15.3.19 Fall back confirm
TS 15.3.20 RTC set CC 15.3.21 RTC set confirm
– – (No control bit for RT) RT 15.3.22 RTC at configured time
TS1 15.3.23 RTC synchronisation CC1 15.3.24 RTC sync. Confirm
TO 15.3.25 Take over TOR 15.3.26 Take over confirm
TC 15.3.27 Transmission confirm – – (No confirm bit for TC)
Miscellaneous Reply Bits: CF 15.4.1 Controller fault
DF 15.4.2 Detector fault
LF 15.4.3 Lamp fault
MC 15.4.4 Manual control mode
RR 15.4.4 Remote reconnect
GR1 15.4.5 First group confirm
CYC 15.4.6 Start of CLF cycle
HC 15.4.7 Hurry call confirm
TF 15.4.8 Test Facility
Table 21 – Summary of UTC Control and Reply Bits