Data Network Terminal Single-port and Multiport Operating Instructions
54 (128)
© Nokia Corporation
DN01145897
Nokia Proprietary and Confidential
Issue 2-0 en
Figure 29.
Local test loop in a port
Figure 30.
Network test loop (single-port)
Figure 31.
PRBS (2
9
-1) test (transmitter/receiver)
PORT 1
DTE
PORT 2
DTE
PORT 3
DTE
REMOTE DNT
PORT 2
DTE
PORT 3
DTE
LOCAL DNT
DTE
PORT 2
DTE
PORT 3
DTE
LOCAL DNT
DTE
PORT 1
DTE
PORT 2
DTE
PORT 3
DTE
REMOTE DNT
PORT 1
DTE
PORT 2
DTE
PORT 3
DTE
REMOTE DNT
PORT 2
DTE
PORT 3
DTE
LOCAL DNT
DTE
Tx Rx