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56 ICX-250 Diagnostics Testing
ADCP-62-023 Issue 1, September 1998
© 1998, ADC Telecommunications, Inc.
T1 Interface - T1 Test Pattern QRSS
(
Slide switch
-
front)
ICX-250 - Front Panel
Description:
This is a two position slide switch used for T1 Interface testing.
Factory Setting:
OFF
On:
All connections between either the Data Ports or the FXS Ports and the T1 interface are
broken and a QRSS pattern is transmitted onto the T1 interface. At this time the T1 Test pattern
LED will light when QRSS is being transmitted.
(see section on LED)
.
Note:
The T1 test pattern for QRSS only works
with framed T1.
Note:
The T1 test LED will come on when the
QRSS switch is turned ON. When operating the
QRSS switch the T1 Loopback switch will be
inoperative.
ICX-250
1357911131517192123
2 4 6 8 10 12 14 16 18 20 22 24
FXS Status Channel
Data Loop 2
Lcl. / Off / Net.
Data Loop 1
Lcl. / Off / Net.
T1 Loop
Net. / Off / Lcl.
T1 Test
Off QRSS
QRSS
1 / Off / 2Off / QRSS
T1 Status
T1 Loop
Test Pattern
Test Pattern
T1 Test
Self Check
11280-A
T1 Test
Off QRSS
Off