Filter
Top Products
4. Maintenance
4-18
February 2001 3160-A2-GB21-90
Figure 4-2. Test Jack Block Diagram
LINE
RECEIVER
INTERNAL
CIRCUITRY
LINE
RECEIVER
TERMINAL
EQUIPMENT
(DTE)
NETWORK
NET
Out
EQPT
In
MON
Out
NET
In
EQPT
Out
MON
In
496-14875
Mon Jack: EQPT Mon Jack: NET
Mon Jack: EQPT Mon Jack: NET
(Selectable)
(Selectable)
Table 4-7. Test Jack Functions
Test Jack Name Function
NET In
(Network In)
A break-in test jack that allows a signal to be inserted toward
the network by external test equipment.
NET Out
(Network Out)
A break-in test jack that interrupts the signal coming from the
network and allows it to be terminated by the external test
equipment.
EQPT In
(Equipment In)
A break-in test jack that allows a signal to be inserted toward
the terminal equipment (DTE) by external test equipment.
EQPT Out
(Equipment Out)
A break-in test jack that interrupts the signal coming from the
terminal equipment (DTE) and allows it to be terminated by the
external test equipment.
MON In
(Monitor In)
A monitor jack that is controlled by the Mon (Monitor) branch of
the menu tree. If it is set to EQPT (the default), this jack
monitors the signal going into the terminal equipment (DTE). If
it is set to NET, this jack monitors the signal going into the
network.
MON Out
(Monitor Out)
A monitor jack that is controlled by the Mon (Monitor) branch of
the menu tree. If it is set to EQPT (the default), this jack
monitors the signal coming from the terminal equipment
(DTE). If it is set to NET, this jack monitors the signal coming
from the network.