Specifications

Mobility and Logistics, Traffic Solutions

Sopers Lane, Poole, Dorset, BH17 7ER

Security classification Unrestricted Page 78 of 83

Version 2 Status Released

Last Editor Harry Smyth Date 09/12/2014

Document Name Configuration Control Document No. 667/CC/45950/000

4.16.2 Additional Regulatory Sign Connection

If the 2nd HPU PCB is not specified and there is a requirement to power more than 8

regulatory signs an expansion kit (667/1/33070/000) is available to support an additional 12

regulatory signs.

With reference to Figure 76 and 77, the expansion kit is positioned above the HPU on the

left hand side of the cabinet. Additional information on the exact position can be sought from

diagram 667/GA/33070/000 Sheet 1. Please Note! The Additional Regulatory Sign Kit

contains both transformer and associated PCB. When specifying multiple kits care

should be taken to ensure that there is sufficient space within the specified cabinet

for the required items.

With reference to Figure 75, the AC input for the ancillary power supply should be obtained

from the master switch unit (Live connected to MCB SW1 and Neutral connected to Terminal

N3). The step down transformer will be configured with conventional power supply leads to

allow this connection. The AC output from the transformer is applied to a terminal strip TB2,

as detailed in the figure below. Please refer to 667/GA/33070/000 Sheet 2 for a detailed

connection scheme and earth arrangement.

Figure 75 – Additional Reg Sign Power

Figure 76 – Additional Reg Sign Figure 77 – Additional Reg Sign