CANOGA PERKINS 9145E Network Interface Device - Manual (Page 48)

9145E Ethernet Network Interface Device User’s Manual Troubleshooting
Loopback Diagnostics
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5.4.2 Network Mode
Network Mode loops data received on the Network Port Rx through the Local User side to the
Network Port Tx. Data is not sent out the local User Port Tx and incoming data on the local User
Port Rx is ignored (see Figure 5-4). To set this mode, set the Loopback State for the Remote
module to Remote (reference 6913303, 9145E NID Software Users Manual).
Figure 5-4. Remote-Remote Loopback Mode
Tx
Rx
Rx
Tx
USER
PORT NETWORK
PORT
LOCAL DEVICE
Tx
Rx
Rx
Tx
USER
PORT NETWORK
PORT
REMOTE DEVICE
NO DATA TRANSMISSION
DATA IGNORED