Verilink PRISM 3010 Dual DSX-1 (34-00250.2) Product Manual - Manual (Page 18)

12 C HAPTER 3: T ERMINAL O PERATION
Port Loop
Used to loop a high-speed DTE at the near or far end. High-speed port loops are
bidirectional.
Figure 3-11 Port Loop
DSX Port Loop
Used to loop the data from the customer equipment back to the customer. The data
from the network is terminated and the data from the customer is passed through
to the network.
Figure 3-12 DSX Port Loop
BERT BERT
Specifies the direction the BERT signal is sent. If the direction is changed from the
front panel, the new choice is not updated on the terminal interface until this
screen is exited and then reentered. The choices are: IDLE, T1 NET, T1 DTE,
Channels 1 –24, plus X Y NET and X Y DTE, where X = 2 or 3 in the PRISM
3030 or 2 through 6 in the PRISM 3060 and Y = A or B.
All testing must be stopped before channels can be reallocated to an active port.
Pattern
Specifies the pattern transmitted during a test. Modifying this field does not cause
the pattern to be transmitted (see Start Test below). The choices are QRSS, 63,
511, 2047, 2
15
, 2
20
, 2
23
, 1:8, 3:24, ALT, and CLEAR. The CLEAR pattern passes
the received data through the unit (alarm detection and reporting is disabled while
the test is active).
Test Length. Defines the run -time of test pattern generation and error
accumulation. The choices are Continuous, 15 min, 30 min, 60 min, and 24 Hour.
Network Interface Framer/Deframer Multiplexer Receivers/Drivers
Receivers/Drivers
BERT Generator /
Detector
EIA-530 or V.35
(100' max.)
Framer /Deframer
DTE (DSX1)
RJ-48C
DSX1, 1'-655'
to cross-connect
To
NET
From
NET
From
NET
To
NET
5
4
2
1
To Network
From Network
RJ-48C
5
4
2
1 To
Ports
From
Ports
DTE
Near/Far
Network Interface Framer/Deframer Multiplexer Receivers/Drivers
Receivers/Drivers
BERT Generator /
Detector
Dual DSX port
Framer /Deframer
DTE (DSX1)
RJ-48C
DSX1, 1'-655'
to cross-connect
From
NET
To
NET
From
NET
To
NET
5
4
2
1
To Network
From Network
RJ-48C
5
4
2
1 To
Ports
From
Ports
DTE
Near/Far
✍