13
Connecting the 10/100Base-T Ethernet Port to a Hub
The Model 1068 10/100Base-T interface is configured as DTE (Data Ter-
minal Equipment), just like a 10/100Base-T network interface card in a
PC. Therefore, it “expects” to connect to a 10/100Base-T Hub using a
straight-through RJ-45 cable. Figure 7 diagrams the cable wiring for con-
necting the Model 1068 to a 10/100Base-T hub.
Figure 7.
Wiring diagram for connecting the Model 1068 to a 10/100Base-T hub
Connecting the 10/100Base-T Ethernet Port to a PC (DTE)
The Model 1068 10/100Base-T interface is configured as DTE (Data Ter-
minal Equipment). If you wish to connect the 1068 to another DTE
devices such as 10/100Base-T network interface card in a PC (or 1068s
in a back-to-back arrangement), you must construct a 10/100Base-T
crossover cable as shown in Figure 8.
Figure 8.
10/100Base-T crossover cable
3.5 CONNECTING THE POTS/ISDN LINE
The RJ-45 port labeled “POTS/ISDN” is the POTS/ISDN interface. A tele-
phone or an ISDN device may be connected to this port and carried over
the VDSL line. The units do not need power for the POTS interface to
1068 10/100Base-T Port
RJ-45 Pin No.
10/100Base-T Hub
RJ-45 Pin No.
1 (TX+)--------------------------------------------------1 (RX+)
2 (TX-)---------------------------------------------------2 (RX-)
3 (RX+)--------------------------------------------------3 (TX+)
6 (RX-)---------------------------------------------------6 (TX-)
1068 10/100Base-T Port
RJ-45 Pin No.
1 (TX+)
1 (TX+)
2 (TX-)
2 (TX-)
3 (RX+)
3 (RX+)
6 (RX-)
6 (RX-)
10/100Base-T DTE
RJ-45 Pin No.
