Installation guide

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 33 of 84
Version 1 Status Issued
Last Editor Carl Rabe Date 11-Dec-2014
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
Pin Function Description
4 External 24V -
Input / Output
Disconnection of the internal power supply at the internal
2-way 24V connector allows external 24V DC power to be
supplied to the system via this pin instead of using the
internal power supply.
This pin also provides access directly to the 24V of the
internal PSU and could be used to power external
equipment if it is desired to have no battery backup for the
external load (power on this pin is fully removed when
mains power is lost).
5 0V Common supply return
6 Force Charger Off
This active low signal when shorted to 0V will disable the
internal battery charger.
7 0V Common supply return
8 DC holdup capacitor
(Future Option)
Not used. An optional variant could be created in future
which provides additional hold-up capacitance on 24V DC,
and on such a variant the hold-up capacitance could be
expanded by connecting an external capacitor to this pin.
9 0V Common supply return
10 External battery
input
If the internal battery is disconnected at the 2-way battery
connector and removed, an external 12V lead-acid or lead-
crystal battery can be connected to this pin with positive to
pin 10 and negative to pin 9. An external battery must be
fused externally with an in-line fuse holder and 5A quick
blow fuse.
Table 13 – General Functions Detailed Description
4.6.4 Switches and Fuses
The PSU board contains two fuses and one switch:
Designation Description Value Part Number
F1 24V I/O Fuse 160mA Quick Blow 518/4/90285/020
F2 Internal battery fuse 5A Quick Blow 518/4/90285/008
Table 14 – PSU Board Fuses