Paradyne 336x E1 manual Important Instructions, Optional Power Sources

Installation

Important Instructions

Read and follow all warning notices and instructions marked on the E1 NTU or included in this guide.

For a complete listing of the safety instructions, see the Important Safety Instructions section at the beginning of this guide.

HANDLING PRECAUTIONS

FOR

STATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from damage due to electrostatic discharge (ESD) during normal operation. When performing installation procedures, however, take proper static control precautions to prevent damage to equipment. If you are not sure of the proper static control precautions, contact your nearest sales or service representative.

Using the optional dc power cable, the E1 NTU is capable of operating on either a +24 Vdc power source,

±48 Vdc single source battery, or ± 48 Vdc redundant source batteries (for power backup). To select the power, choose one of the following power supply types.

Installing the +24 Vdc Power Supply

To install the E1 NTU using a +24 Vdc power supply, refer to Figure 2-9and use the following procedure.

To install the +24 Vdc power supply,

1.Connect the green wire to a suitable earth ground.

2.Connect the white wire to the +24 Vdc return.

3.Connect the orange wire to the +24 Vdc source.

4.Cut the black, red and blue wires off at the outer insulation.

5.Plug the power connector into the E1 NTU.

Optional Power Sources

The E1 NTU is typically powered by the ac power module. Use the following procedures only if you want to use an optional dc power source.

NTU POWER
	PLUG		TO CUSTOMER-SUPPLIED BATTERY
		BLACK
	1		X
		RED
	2		X
		GREEN
	3			EARTH GROUND
		WHITE
	4			+24 VDC RETURN
		ORANGE
	5			+24 VDC SOURCE
		BLUE
	6		X
		CABLE NUMBER 3100-F1-520
			495-14743

Figure 2-9. +24 Vdc Power Supply Pinouts

3360-A2-GB20-20 December 1996 2-5