RJ-45 shielded 10/100 Ethernet port
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OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual
D
• OnSite Physical Connectors
RJ-45 shielded 10/100 Ethernet port
Assuming the MDI-X switch is in the out position.
RJ-45 non-shielded RS-232 console port (EIA-561)
The RS-232 serial control port of the OnSite is configured to operate as a DCE.
T1/E1 port (WAN)
E1/T1 (RJ-48C Connector)
The T1/E1 transmit signals are not polarity sensitive, even though they have the traditional designation of Tip
and Ring.
Table 6. Ethernet Port (MDI-X switch in out position)
Pin No.
Signal Name
Direction
1
TX+
from OnSite
2
TX-
from OnSite
3
RX+
to OnSite
4
5
6
RX-
to OnSite
7
8
Table 7. RS-232 Control Port
Pin No.
Signal Name
Direction
1
DSR
from OnSite
2
CD
from OnSite
3
DTR
to OnSite
4
Signal Ground -
5
RD
from OnSite
6
TD
to OnSite
7
CTS
from OnSite
8
RTS
to OnSite
Table 8. T1/E1 Port
Pin No.
Signal
1
Receive (Ring)
2
Receive (Tip)
