Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Security
classification Unrestricted
Page
35 of 92
Version
3
Status
Issued
Last Editor
Alan Doyle
Date
05-Oct-2017
Document Name
Stratos Outstation General and ICM Handbook Document No. 667/HB/52250/000
Copyright © Siemens plc 2014. All Rights Reserved. Mobility and Logistics is a division of Siemens Plc
4.6.1 PSU LEDs
The three LEDs on the front of the PSU board as shown below (viewed from the front).
LED
State
Description
SYS / RUN
(Green)
Slow Flash
Normal Operation
Medium
Flash
Configuration or Firmware Download in progress
Double Pulse Low power mode (Future Feature)
COMMS
(Green)
On
Normal operation, GSPI messages being
received regularly
Off
No relevant GSPI messages received in the last
second (implies loss of communications), or low
power mode
FAULT
(Red)
Off
Normal operation
On
Fault detected. See Table 10 for details
Double Pulse Firmware is in Error and low power mode
Table 9 – PSU & I/O Board LED States
4.6.2 PSU
Faults
Presence of the following PSU board faults will cause the fault LED to be on. When the
fault LED is illuminated the fault table webpage can be accessed to determine which of
the following faults is present.
Fault
Possible cause/Remedy
Hardware error
Could be caused by one of the following
1. I/O fuse (F1) failure
- replace the fuse (section 7.3.5)
2. PSU board hardware failure
- replace the PSU board.
Supply voltage low (environment error)
The PSU board supply voltage has
dropped below 8V