Specifications

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 53 of 83
Version 2 Status Released
Last Editor Harry Smyth Date 09/12/2014
Document Name Configuration Control Document No. 667/CC/45950/000
Copyright © Mobility 2014. All Rights Reserved. Mobility is a division of Siemens Plc
With reference to the flow chart in Figure 35 it can be seen that a combination of HPU and
LSLS cards may be fitted to a controller, chosen from Table 4. To ensure that the lamp load
is distributed evenly and ensure maximum power supply flexibility is maintained under
varying circumstances, the following connection scheme should be followed.
With reference to Table 6, in order that the load may be redistributed, at final configuration,
LSLS 3 is connected to HPU 1. The addition loom length required for this connection will
allow the LSLS 3 connection to be removed from HPU 1 PL6 and connected to HPU 2, if
required.
Table 6 – HPU Load Distribution
Cabinet Type Number
of HPU
Fitted
Number
of LSLS
Fitted
Connection scheme
Single Cabinet
20A Version
One One Connect HPU 1 PL4 to LSLS 1 backplane PL3
Single Cabinet
20A Version
One Two Connect HPU 1 PL4 to LSLS 1 backplane PL3
Connect HPU 1 PL6 to LSLS 2 backplane PL3
Single Cabinet
20A Version
One Three Connect HPU 1 PL4 to LSLS 1 backplane PL3
Connect HPU 1 PL6 to LSLS 2 backplane PL3
Connect HPU 1 PL7 to LSLS 3 backplane PL3
Single Cabinet
40A Version
Two Two Connect HPU 1 PL4 to LSLS 1 backplane PL3
Connect HPU 2 PL4 to LSLS 2 backplane PL3
Single Cabinet
40A Version
Two Three Connect HPU 1 PL4 to LSLS 1 backplane PL3
Connect HPU 2 PL4 to LSLS 2 backplane PL3
Connect HPU 1 PL6 to LSLS 3 backplane PL3
4.2.6 Regulatory Sign Monitoring
With reference to paragraph 4.16 below, Regularity Sign monitoring is performed (if
required) by LSLS external monitor input channels. It is important that the HPU regularity
sign monitoring connection is made to the same LSLS backplane as the HPU power supply
connection.
Output channels are configured using the appropriate software configuration tools (IC4).
On those occasion when more than 8 regularity signs are required but a second HPU is not
specified please refer to paragraph 4.16.