Specifications

Diagnostic Testing Details 4
TS-8900 Functional Test System Diagnostics User Guide 4-31
CEDGN_U7177A_LoadCard.tpa (24 Channel Load Card CEDGN Test Flow)
The testsplan supports testing of eight U7177A Load Cards.
User is required to set the variables to reflect the system under
test.
1 = present, 0 = not present
bLC24CH_1 = 1st U7177A
bLC24CH_2 = 2nd U7177A
bLC24CH_3 = 3rd U7177A
bLC24CH_4 = 4th U7177A
bLC24CH_5 = 5th U7177A
bLC24CH_6 = 6th U7177A
bLC24CH_7 = 7th U7177A
bLC24CH_8 = 8th U7177A
Device that user sets as not present will not be tested. The test
starts by performing:
Not Acceptable Combination Checking
• Checks user settings for any not acceptable combination. Stops
test and provide error message if not acceptable selection is found.
U7177A 24 Channel Load Card LC24CH_1 Tests
• Display instruction to Install load module E2240-67012 on
LC24CH_1 Load Card.
• For LC24CH_1 on TC1, display instruction to install CEDGN Board
#4 on TC1 and Cable E6170-61607 from SLU Utility Connector to J2
of Board #4.
• For LC24CH_1 on other TC, display instruction to install CEDGN
Board #1 on TC1 and CEDGN Board #4 on appropriate TC. Install
Cable E6170-61607 from SLU Utility Connector to J2 of Board #4.
Install Cable E6170-61607 from J1 of Board #1 to J1 of Board #4.
• Setup DMM to perform 2W resistance measurement.
• Measure LC24CH_1 load card loopback path resistance from
CH1-Com1 until CH12-Com12 via Row1 and Row8
CH13-Com13 until CH24-Com24 via Row2 and Row7
• Measure LC24CH_1 load card sense resistor path:
CH1 Sense until CH24 Sense via Row25 and Row26.
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