Siemens ST950 - Page 140

Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification
Unrestricted
Page
140 of 154
Version
7
Status
Issued
Last Editor
manpreet.jeerh
Date
January 2020
Document Name
ST950 ICM Handbook
Document No.
667/HE/45950/000
Copyright © Siemens plc 2020. All Rights Reserved. Mobility is a division of Siemens Plc
RS232 Modem
Tests the RS232 modem connection
using a loopback connector.
Where no loopback is detected ‘not
conn’ is displayed for each failed
connection:
TXD-RXD
DTR-CTS
DTR-RI
RTS-DSR
Modem:
loopback:
Test Status
Pass: Modem
Test ID
Aux3
Test: Aux3
Auxiliary RS232
Tests the Auxiliary RS232 connection
using a loopback connector.
Where no loopback is detected ‘not
conn’ is displayed for each failed
connection:
TXD-RXD
DTR-CTS
RTS-DSR
Aux3:
Loopback:
Test Status
Pass: Aux3
EFC Tests
Complete
EFC passes control of self test back to
Primary CPU – EFC Inventory tests
complete
EFC INV done
Primary control
of self test
Primary Driver tests begin; checks that
the Phase Bus system can be started
but does not yet switch on the lamp
supply
Waits for ZXO
synchronization
and checks the
mains
frequency
Source of ZXO detected and reported.
If the Processor cannot synchronize to
the mains zero cross-over signal, then
Self-Test waits indefinitely at this point
with the red system error LED
illuminated. Check/replace the
connection between LSLS#1 and the
CPU Card. Then try replacing LSLS#1
or the CPU Card
ZXO from.....SEC
Mains Supply
Mains frequency measured and
reported
Mains Freq...50.0Hz