Specifications
ST900 Family General Handbook
667/HB/32900/000 Issue 12 Page 57 of 265
3.14.3 LSLS Output Capability
One LSLS output can drive, and one sensor can monitor, the following loads:
Output Type
Maximum
Quantity
1
Lamp
Monitoring
2
Helios ELV (vehicular or far-side ped) 8 Yes
STC Red/Green Nearside
5
4 Yes
AGD Red/Green Nearside
5
4 Yes
STC Demand Indicator
5
6 Yes
AGD Demand Indicator
5
8 Yes
STC LED Wait Indicator
5
6 Yes
Audible Driver Module
3,4
4 No
Tactile
4
4 No
Table 12 – LSLS Output Capability
IMPORTANT
Refer to 667/SU/32900/000 for compatibility information.
WARNING
Nearside, Wait or Demand units without an attached ‘ELV’ label must
not be connected to the LSLS. Spurious faults and damage to the
LSLS may result if this is done. This applies to units of either Siemens
or AGD manufacture. See Note 5.
Notes:
1
– Note that the LSLS Backplane only provides terminations for 4 street cores.
Also see section 3.15 starting on page 66 for details of number of cores
required for long cable runs.
2
– The output drive limits for one LSLS output are also the monitoring limits for one
sensor. Even though a sensor may be configured to monitor more than one
LSLS output of the same colour, that one sensor can still only monitor the
number of signals listed. Example: If a large number of near-side signals are
fitted and so two LSLS outputs are provided for each colour, each output must
be monitored by a different sensor, as done in the ST750ELV standard ped
configurations. However, if two LSLS outputs are used solely to provide more
terminations, then as long as the total number of signals does not exceed the
limit, both outputs can be monitored by one sensor. Example: Eight Helios ELV
signals on two outputs can be monitored by the same sensor.
3
– Each Audible Driver Module can drive up to 8 audible sounders.
4
– 4 Tactile Units and 1 Audible Driver Module (8 sounders) or 2 Tactile Units and
2 Audible Drivers (16 sounders) can be simultaneously driven from one LSLS
output.
5
– Note that only product fitted with a clear ELV label may
be connected to the LSLS. Although the part numbers of
these products may not have changed, the internal
circuitry has - so on no account must a unit without the
relevant label be connected, otherwise spurious faults or
damage to the LSLS may result. Refer to the document