WTI NPS-115 Guide de l'utilisateur télécharger pdf (Page 26)

4-2

Hardware Installation

4.1.2. Connect the VMR or NPS to Your Power Supply

Refer to the cautions listed below and at the beginning of this User's Guide, and then

connect the VMR/NPS unit to an appropriate power supply.

Note: Some VMR/NPS units are shipped with one or two detachable 125 VAC,

15 Amp "Starter" Cables. These cable(s) will allow you to connect a 120 VAC

VMR/NPS unit to power for bench testing and initial start up and are adequate

for applications that only require 15 Amps. For higher amp power switching

applications, please refer to the WTI Power Cable Guide (which can be found

on the CDROM included with the unit) or use appropriate cables.

CAUTIONS:

• Before attempting to install this unit, please review the warnings and

cautions listed at the front of the user’s guide.

• This device should only be operated with the type of power source

indicated on the instrument nameplate. If you are not sure of the type of

power service available, please contact your local power company.

• Reliable earthing (grounding) of this unit must be maintained. Particular

attention should be given to supply connections when connecting to

power strips, rather than directly to the branch circuit.

4.2. Connection to Switched Outlets

Connect the power cord from your switched device to one of the AC Outlets on the VMR

or NPS unit. Note that when power is applied to the VMR or NPS, the AC Outlets will be

switched “ON” by default. Note that some VMR and NPS models feature two separate

power branches, while others may feature only one power branch.

4.3. Serial SetUp Port Connection

The VMR/NPS SetUp Port is a female, RJ45 RS232 connector, wired in a DCE

configuration. In the default state, the Setup port is configured for 9600 bps, no parity,

8 data bits, 1 stop bit. The Setup Port can be connected to either an external modem or

a local PC, but not both items at the same time. Appendix B.1 describes the Setup Port

interface.

4.3.1. Connecting a Local PC

Use the DX9F-WTI Adapter supplied with the unit to connect your PC COM port to the

VMR/NPS Setup Port. Make certain that the Serial Port Mode is set to “Normal” as

described in Section 5.8.

4.3.2. Connecting an External Modem

When connecting directly to an external modem, use the optional DX9M-RJ-KIT (not

included) to connect your external modem to the VMR/NPS Setup Port. Make certain

that the modem is initialized at the same default parameters as the VMR Setup Port and

that the VMR/NPS Serial Port Mode is set to “Modem” as described in Section 5.8.

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WTI NPS-115 Guide de l'utilisateur Page 26