Instruction manual

1.3 Power up the DNE4500-P-6

Upon start up of the DNE4500-P-6, the Ethernet link for each port will remain disabled until the

corresponding DS3 network link has been established.

1.3.1 AC Power

Plug the AC Power Supply Cord into the back of the DNE4500-P-6-AC and connect it to the power

source. Turn the power switch ON (ON="|", OFF="O") and verify that the PWR (Power) LED on the

front of the unit is illuminated.

1.3.2 DC Power

Attach the DC power leads and ground connection to one of the two terminal blocks on the back of

the DNE4500-P-6-DC; either terminal block may be used or both may be used for redundancy (when

backup power is desired). Be sure to attach the positive lead (+) to the positive terminal (+) and the

negative lead (-) to the negative terminal (-) as indicated on the terminal block labels. Turn the power

source ON and verify that the PWR LED on the front of the unit is illuminated.

1.4 Configure Port Switches

Configure the switches on the front of the DNE4500-P-6, for each port being connected, according to the

clock source and line buildout for that connection. Each port, labeled from left to right (1-12), has two

switches: switch #1 is on the left and switch #2 is on the right.

1.4.1 Tx Clock Source

The transmit (Tx) clock provides a timing reference, through generation of periodic synchronization

signals, to coordinate both the timing of certain procedures and communication with remote

network devices. When the DNE4500-P-6 Tx Clock Source is set to LOCAL, it generates

synchronization signals internally. A Tx Clock Source set to LOOP generates synchronization signals

from incoming pulses on the DS3 line.

1.4.2 Tx Line Buildout

Tx Line Buildout allows for adjustment of signal attenuation in order to accommodate distance

variance between the DNE4500-P-6 and the transport equipment to which it's connected.

AUTION

Do not overload the electrical branch circuit of the power source for the DNE4500-P-6.

SWITCH #1 SOURCE

Down Local

Up Loop

SWITCH #2 DISTANCE

Down 0-225 feet 0-69 meters

Up 225-450 feet 69-137 meters

220-0000018 rev 02