NJR-T04HD / NJR-R04HD User’s Guide
29
8.3.5 Connecting LAN cable
Pin assignment of the LAN port is as follows.
Auto MDI/MDI-X that detecting and switching straight cable / cross cable is supported.
1
8
8-pin RJ-45
Modular connector
*
N.C.: No Connection
[Fig. 8.10] LAN connector specification
Make sure not to form a loop by NJR-T04HD / NJR-R04HD when connecting a LAN cable to NJR-T04HD /
NJR-R04HD.
NJR-T04HD / NJR-R01UHD constantly send broadcast packet in order to notify status.
If adding the LAN cable to the existing network, avoid problems such as broadcast storm caused by broadcast
traffic.
Broadcast storm: This problem occurs when a network system is overwhelmed by continuous broadcast
traffic or the like.
Pin
number
Signal name
MDI
MDI-X
1000BASE-T
100BASE-TX/10BASE-T
1000BASE-T
100BASE-TX/10BASE-T
1
TRX+ (Transmitted &
Received data
＋
)
TX+ (Transmitted data
＋
)
TRX+ (Transmitted &
Received data
＋
)
RX+ (Received data
＋
)
2
TRX- (Transmitted &
Received data)
TX- (Transmitted data)
TRX- (Transmitted &
Received data)
RX- (Received data)
3
TRX+ (Transmitted &
Received data
＋
)
RX+ (Received data
＋
)
TRX+ (Transmitted &
Received data
＋
)
TX+ (Transmitted data
＋
)
4
TRX+ (Transmitted &
Received data
＋
)
N.C. (No connection)
TRX+ (Transmitted &
Received data
＋
)
N.C. (No connection)
5
TRX- (Transmitted &
Received data)
N.C. (No connection)
TRX- (Transmitted &
Received data)
N.C. (No connection)
6
TRX- (Transmitted &
Received data)
RX- (Received data)
TRX- (Transmitted &
Received data)
TX- (Transmitted data)
7
TRX+ (Transmitted &
Received data
＋
)
N.C. (No connection)
TRX+ (Transmitted &
Received data
＋
)
N.C. (No connection)
8
TRX- (Transmitted &
Received data)
N.C. (No connection)
TRX- (Transmitted &
Received data)
N.C. (No connection)
