Instruction manual

1.5 Connect the DS3 Cable(s)

Plug the DS3 Tx and Rx cables into the corresponding BNC ports on the front of the DNE4500-P-6 for each

port being connected to a remote DS3 modem. The DS3 cables should be connected to the same ports for

which you applied the switch configurations in Section 1.4. Verify the connections; the Lnk/Alm LED for

each port being connected will pulse green (once per second) to indicate the DS3 link is established and

operational.

1.6 Connect the Ethernet Cable(s)

The 10/100 Fast Ethernet connection for each port will auto-negotiate speed and duplex mode; these

Ethernet configurations cannot be hard set on the DNE4500-P-6. For the best connection results, the

remote device (PC, hub, switch, etc.) should be set to auto-negotiate speed and duplex mode as well. If the

remote device cannot be configured to auto-negotiate, speed may be hard set at either 10Mbps or

100Mbps but duplex mode must be hard set to Half Duplex; a 10/100 Ethernet connection cannot be

established if the remote device is hard set to Full Duplex.

Plug the Ethernet cables into the 10/100 Fast Ethernet RJ45 ports on the front of the DNE4500-P-6 for

each port being connected. Make sure to connect the cables to the corresponding ports for which you

applied the switch configurations in Section 1.4 and connected the DS3 lines in Section 1.5. Verify the

connections; solid illumination of the Fast Ethernet Lnk LED indicates an Ethernet link has been

established for that port. If the LNK LED for a port is illuminated but not the 100 LED then a 10 Mbps link

has been established. If the 100 LED is illuminated in addition to the Lnk LED, then a 100 Mbps link has

been established.

For most applications, the Ethernet RJ45 ports on the DNE4500-P-6 connect to a PC using a STRAIGHT

THROUGH ETHERNET CABLE and to a hub or a switch using a CROSSOVER ETHERNET CABLE. For any

other connection combination you must verify the pinout of the Ethernet device to which the port is being

connected in order to determine which type of cable is required for that connection.

OTE

The DNE4500-P-6 may be connected via DS3 line to either a DS3 network extender subscriber unit (DNE4500-S) or

another DS3 network extender provider unit (DNE4500-P, DNE4500-P-6).

EXCEPTION: a provider to provider connection will not work if both units are configured with loop timing.

OTE

The Ethernet link for each port is programmed to remain disabled unless, or until, the corresponding DS3 network link

has been established.

10/100 Ethernet RJ45 Port Pinout

Pin 1 Rx+ Pin 5 not used

Pin 2 Rx- Pin 6 Tx-

Pin 3 Tx+ Pin 7 not used

Pin 4 not used Pin 8 not used

220-0000018 rev 02