Pedestrian Audible/Tactile Indications - Siemens ST950 Handbook

4.12

Pedestrian Audible/Tactile Indications

4.12.1 Non-Switched Audibles/Tactiles
The Audible power supplies on the ST950 are designed to provide a DC voltage
between 10V and 24V, and typically provide 50mA at 18V DC. This is provided
using the Audible Supply Kit. See the ST950 Installation, Commissioning and
Maintenance Handbook for more details.
This kit also provides the controlling signal for 'Tactile Power Supplies'. The tactile
power supply obtains its power directly from the pedestrian green drive. The
controlling signal allows the controller to switch off the tactile while the green is
flashing, for example.
Audible and tactile units used must operate correctly over the voltage range 10 to
24V DC. The audible units recommended and supplied by Siemens, which meet
this requirement, are:
Audible: 667/4/04785/000
Tactile: 667/7/17390/000 (mains driven pedestrian green signal)
667/7/17390/048 (48V nearside pedestrian green signal)
Options Available:
KOP for Signal Head mounted Audible/Tactile Drive
KOP to add Audio Ind to Push Button Unit
Adjustable Audio Kit
Note: If the dimmed supply voltage is 120V, 140V or 160V, the Sonalert Mallory
SC628P audible indicator can be used as specified above. An alternative used by
other companies is the Bleeptone A.P. Bessom RS/1 18V, which can only be used
at 160V dimming.
It is recommended that all units on one supply are the same type.
Security classification
Version
Last Editor
Document Name
Copyright © Siemens Mobility Limited 2018. All Rights Reserved.
• Highland Electronics type SC628P*
• Roxborough type SPCI535A4
• Askari (Tone 22 – variable volume)
• (* was Sonalert Mallory SC628P)
• Radix RS252
Unrestricted
5
Neil Atkinson
ST950 ICM Handbook
Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
667/1/15799/000
667/1/15292/000, or
667/1/15292/001
Page 49 of 125
Status Issued
Date 18-Dec-2018
Document No. 667/HE/46950/000