EXFO FTB-1, User Manual

Page: 138 / 675

Test Setup - Test Configurator, Timer, and System
126
FTB-700G/800 Series
Clock
Ext Clock In
Note: Available when the Clock Mode is set to External .
Allows to set the external clock for test synchronization.

Interface Type allows the selection of the clock interface:
DS1
(default),
E1
,
2MHz
, or
1PPS
.
1PPS
is automatically selected for
Dual Test Set in One-Way Latency measurement mode.
Ext Clock In
on a green background indicates that a valid clock is
received on the EXT CLK port.
LOS
on a red background indicates that the clock is not valid on the
EXT CLK port.

Termination
mode specifies how the NetBlazer is connected to the
synchronization signal. The Termination mode is set to TERM for 2MHz
and configurable for DS1 and E1.
For DS1:

TERM
provides an input that terminates the DS1 signal.

DSX-MON provides high-input impedance and compensation for
resistive loss. This setting is useful for monitoring DS1 signals at
DSX monitor points, which are resistor-isolated.

BRIDGE
provides high-input impedance for bridging lines that are
already terminated. This setting is useful for bridging directly
across copper cable pairs.