Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
of a separate transformer and PCB module for powering a further 12 signs. Lamp
monitoring is performed (if required) by two LSLS external monitor input channels.
The wiring between the transformer and PCB module is detailed by drawing
667/GA/33070/000 (sheet 2) which is supplied with the ELV Regulatory Sign
Extension Kit. The kit is installed above the HPU on the left hand wall of the
controller cabinet with the additional transformer mounted above the PCB module.
Figure 41 – Regulatory Expansion PCB Module
Care should be taken to avoid direct contact between the cabling and the heatsink
at the rear of the expansion kit module. The module is secured to the cabinet with 4
screws (supplied with the kit). The transformer is attached to the cabinet directly
above the PCB module.
The street cabling to the regulatory signs is connected to the cage-clamp connector
block located on the expansion kit PCB module. Up to twelve regulatory signs may
be connected, arranged in two groups of six [These are labelled REG1..REG12 on
the PCB ident in the same manner as the HPU reg. sign connections]. The
connection point closest to the p.c.b. is the common return connection.
A common return may be utilised for regulatory signs. If using a common return,
ensure the cable loading limits are not exceeded.
Two twisted pair cables connect the LSLS module external (toroid) inputs to the
current output connectors of the module. These are located at either end of the
PCB module and use four way Molex style connectors.
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