User's Manual Part 4

DSPbR Series – User’s Manual
Document Number 00000.B Page 72/75
A: Only the master CSC module has an Ethernet controller and therefore IP and MAC address.
Q: In as much as the slave CSC will not be communicated to directly via a TCP/IP interface when additional sub
racks are daisy chained, can we assume full functionality of master and slave units through the Master CSC
TCP/IP interface?
A: Yes.
Alarm Communication and Management
Interface for internally and externally generated alarms;
Q: How are the DSPbR internal alarm conditions presented?
A: Internally generated alarms are presented via galvanically isolated N/O , N/C and C/P relay contacts via the
DB15 socket connector at the rear of the DSPbR on the Ref Gen + Aux module. There are two relay’s, one
allocated critical alarms, the other minor alarms.
Q: How are external alarms interfaced into the DSPbR and how are they communicated?
A: External alarm high impedance input requires grounding to trigger the alarm, which is hardwired via the
DB15 socket connector at the rear of the DSPbR on the Ref Gen + Aux module. A change in this state triggers
an alarm condition which is indicated via the GUI interface and when a cell modem is fitted, via an SMS to
appointed recipients. There are four available external alarm inputs.
Temperature measurement and front mounted cooling fans:
Front mounted cooling fans
Q: Do the front mounted cooling fans require any maintenance?
A: There are washable dust filter elements located under the front plastic covers at the opening aperture of both
fan assemblies. The plastic filter covers can be removed by hand.
These filters can be periodically removed and washed in warm, mild soapy water, rinsed thoroughly, dried and
replaced. Should the filter elements be torn or degraded in any way, they will require replacing. Please do not
replace these filters with any other filter type. This may inhibit airflow and significantly increase the operating
temperature.
Q: What are the replacement part numbers for the plastic fan covers and dust filters?
A: Refer to chapter 10. DSPbR ancillary equipment and spares part numbers, where these parts are listed.
Q: can the DSPbR measure the ambient room or enclosure temperature?
A: There is no specific ambient temperature sensor provisioned for the DSPbR, however the Ref Gen + Aux
temperature sensor would be the most representative of the ambient air temperature.
Q: Where are the temperature measurement points within in the DSPbR