Test Jacks - Paradyne 3350 User Manual

ACCULINK 3350 E1 NTU

Test Jacks

Six test jacks are located on the front panel
(Figure 4-1). These test jacks allow for four break-in tests
and two monitor access points to the E1 NTU.
Test jack functions are shown in Figure 4-2 and
described in Table 4-8.
E1
LINE
Out
TERMINAL
EQUIPMENT
(DTE)
E1
LINE
In
Test Jack Name
HDSL NET Lp1
(HDSL Network Loop 1)
HDSL NET Lp2
(HDSL Network Loop 2)
E1 LINE In
E1 LINE Out
E1 MON In
(E1 Monitor In)
E1 MON Out
(E1 Monitor Out)
4-14
E1
MON
Out
LINE NTU
INTERFACE CIRCUITRY
E1
MON
In
Figure 4-2. Test Jack Block Diagram
Table 4-8
Test Jack Functions
A break-in test jack that allows a signal to be inserted by external test equipment.
The signal is inserted and received on the HDSL (Loop 1) side of the E1 NTU.
A break-in test jack that allows a signal to be inserted by external test equipment.
The signal is inserted and received on the HDSL (Loop 2) side of the E1 NTU.
A break-in test jack that allows an E1 signal to be inserted toward the E1 NTU on
the G.703 DTE side of the E1 NTU.
A break-in test jack that allows an E1 signal to be inserted toward the terminal
equipment on the G.703 DTE side of the E1 NTU.
A monitor jack that nonintrusively monitors the signal coming out of the terminal
equipment on the G.703 DTE side of the E1 NTU.
A monitor jack that nonintrusively monitors the signal going into the terminal
equipment on the G.703 DTE side of the E1 NTU.
June 1996
HDSL E1 E1
NET LINE MON
Lp1 In In
Lp2 Out Out
495-14753
Figure 4-1. E1 NTU Test Jacks
HDSL
NET
Lp1
LINE
INTERFACE NETWORK
HDSL
NET
Lp2
Function
HDSL
495-14755
3350-A2-GB20-10