EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 153)

Port Tabs
SONET/SDH Application 139
Port TX (Electrical Interfaces)
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LBO (Line Build Out): The LBO allows to meet the interface
requirements over the full range of cable lengths. LBO is not available
with E1, E2, E3, and E4 interfaces.
For DS1:
Preamplification values: +3.0 dBdsx (533-655 ft), +2.4 dBdsx
(399-533 ft), +1.8 dBdsx (266-399 ft), +1.2 dBdsx (133-266 ft), and
+0.6 dBdsx (0-133 ft).
Cable simulation (CSU Emulation mode) values: 0.0 dBdsx, -7.5
dBdsx, -15.0 dBdsx, and -22.5 dBdsx.
For DS3: 0 to 225 feet range, 225 to 450 feet range, and Cable
Simulation 900 ft).
For STS-1e/STM-0e: 0 to 225 feet range, 225 to 450 feet range, and
Cable Simulation 900 ft).
For STS-3e/STM-1e: 0 to 225 ft.
Signal Analysis
Output Presence: Indicates the presence of a signal at the output port
(green) or not (gray).
Alarm Generation
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Type
LOS (Loss Of Signal): Turns off the output port signal.
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On/Off button: Press On/Off to enable/disable the alarm generation.