9500 MPR TAT

ED 10

Optics WT- TEC Draft 50/72

22 HOUSEKEEPING TEST

The purpose of this test case is to test the housekeeping channels.

22.1 Test Configuration MPR has to be equipped with AUX peripheral unit (see ref. [VI]). The alarm polarities for input and output alarms to be taken into account for the test is the following:

Input Alarm Setup

Output Alarm Setup

9500 MPR TAT

ED 10

Optics WT- TEC Draft 51/72

22.2 Test Procedure • Enable the housekeeping connectors PIN • Connect the multimeter to the PIN direction output and set the instruments properly

for the test • Check the alarms • Connect the PIN direction input to the ground as shown in the figure above and act in

a way to open or close the circuit • Check the status of the alarm • Perform the test setting first the status of the alarms as normally closed and second as

normally open

22.3 Test Result The alarms will appears and disappears coherently with the settings applied.

22.4 Remark In case of output alarm the electrical characteristics are the following: open contact: 2V < |V|< 60V; |I| < 0.2mA closed contact: 0V < |V|< 2V; |I| < 50mA In case of input alarm the electrical characteristics are the following: open contact: 2V < |V|< 60 V; |I| < 0.2mA closed contract: 0V < |V|< 2 V; |I| < 50mA

23 REFERENCES [I] 9500 MPR 1.4.0 Technical Description Version 4.0 [II] ETSI EN 302 217-2-2 V1.2.3 (2007-09) and V1.1.3 [III] ITU-T G.703; ITU-T G.823 [IV] European Communities – Radio Spectrum Article 3.2 R&TTE Directive (1999/5/EC) [V] RFC 2544 [VI] User Manual - 9500 MPR-E Rel. 3.0.0----- [VII] ETSI Technical Summary – Rev. 6.2 [VIII] ITU-T G.707 [IX] ITU-T G.957 [X] ITU-T G.825 [XI] ITU-T G.783