WTI 12651 Manuale utente

WTI Part No.: 12651

Rev.: B

RPB+

Remote Power Boot Switch

Preliminary Draft

May, 1996

User's Guide

1. Introduction

Network equipment sometimes "locks-up", making it impossible

to communicate. The RPB+ Remote Power Boot Switch can

switch AC power on 5 individually controlled plugs, allowing

attached equipment to reset (re-boot).

ASCII commands are sent to the RS-232 Control Port to select

plugs, and specify On, Off, or Boot operations. A convenient

Status Screen shows On/Off conditions at each plug. RPB+

features include a security password, Location I.D. field, and

plug labels to identify the device connected to each plug.

Features:

·Remotely Toggles AC Power to Five Separate Outlets.

·Serial RS232 Control Port Interfaces Directly with a PC or

External Modem, Allowing Local or Remote Control.

·Status Display Shows Plug Labels and On/Off Conditions.

·Simple ASCII Commands for On, Off, or Boot (Off/On).

·User-Selectable Re-Boot Cycle Duration (Off Time).

·User-Programmable Password Feature.

·User-Programmable Location I.D.

·User-Selectable Echo Mode.

·User-Programmable Plug Labels.

·User-Programmable Power-Up Defaults.

·Requires Only One Rack Space.

·Available in 115 VAC or 230 VAC Configurations

Typographic Conventions

Throughout this manual, typefaces and characters have been used

to denote the following:

COURIER FONT Indicates characters typed on the keyboard.

For example, /S or /3 ON.

[Bold Font] Text set in bold face and enclosed in

square brackets indicates a specific key.

For example, [Enter] or [Esc].

Page 1

2. Unit Description

2.1. Front Panel

As shown in Figure 1, the RPB+ front panel includes a series of

LED indicators which function as follows:

ÀPOWER ON: Lights when AC Power is applied to the

RPB+.

ÁDATA INPUT: Flashes when ASCII commands are

received at the Control Port.

ÂPLUG ON (Plugs1-5): Lights when the corresponding

plug is switched On.

Page 2

RPB+ User's Guide

Figure 1: Front Panel

2.2. Back Panel

As shown in Figure 2, the RPB+ back panel includes the

following items:

ÀSwitched AC Outlets (Plugs1-5): For connection to up

to five AC devices. Each outlet is capable of switching up

to 15 Amps. The total for all five outlets must not exceed

15 Amps.

ÁSetUp Switches (RATE): A bank of four DIP Switches

which set the Control Port baud rate, select the Off Time

duration, enable/disable the Password Option, and

enable/disable the Read Only Mode.

ÂRS232 (Control) Port: For connection to an external

modem or local PC. The RPB+ accepts ASCII commands

via the Control Port.

ÃDEFAULT Button: Reads Rate Switch settings and sets

parameters accordingly. This allows the user to change

Rate Switch settings without re-booting the RPB+ and

connected devices. The Default Button can also be used to

bypass the Password Prompt.

ÄPower Cable (115 VAC Units)

Power Cable Receptacle (230 VAC Units)

ÅCircuit Breaker: 15 Amps

ÆPower Switch

Page 3

Unit Description

Figure 2: Back Panel

3. Installation

3.1. SetUp Switches

The SetUp Switches select the baud rate and Off Time, and

enable/disable the Password feature and Read Only Mode. If

switch settings are changed while the unit is powered On, press

the Default Button to re-read switches. The Default Button

allows the user to change switch settings while power is on,

without re-booting the RPB+ and connected devices.

Note: If Rate Switch settings are changed while the

unit is powered on, new parameters will not take

effect until the Default Button is pressed, or the

RPB+ is powered Off and On.

Off Time: When a boot cycle is initiated, the "Off Time"

determines the length of time the device will remain off until

power is restored.

Password: When enabled, a password is required in order to

access the RPB+ Command Mode (Default = [Enter]). To re-

define the Password, refer to Section 4.

Read Only Mode: When enabled, the /P command (Define

Parameters) is suppressed. This allows the user to invoke

On/Off/Boot commands, but prevents redefinition of

parameters such as the Password and Power-Up Default.

Switch Function Up Down

1 Control Port Baud Rate 2400 bps 9600 bps*

2 Off Time 10 sec. 5 sec.*

3 Password Function Disable Enable*

4 Read Only Mode Enable Disable*

* = Factory Setting

3.2. Control Port Connection

The male, DB9 connector (labeled "RS232") is used for

connection to an external modem or local PC. The RS232 Port

uses a DTE configuration, similar to an AT computer. Figure 3

describes the Control Port interface.

Page 4

RPB+ User's Guide

3.2.1. Connecting to a Modem

When connecting directly to an external modem, use a standard

AT to Modem cable. Make certain the modem is initialized at

the same baud rate as the RPB+ (SetUp Switch 1). The modem

must be placed in Auto-Answer mode, and set to answer in one

ring. Please refer to the user’s guide for your external modem in

order to determine the appropriate AT command string.

3.3. Power Connection

The Power Switch located on the back panel must be “On” in

order for the RPB+ to operate. Each time the unit is powered

On, the five AC outlets will be switched On or Off, as dictated

by the Power-Up Default String (see Section 4.1). Each outlet is

capable of switching up to 15 Amps of AC power. The total for

all 5 outlets cannot exceed 15 Amps.

Page 5

Installation

Figure 3: RS-232 (Control Port) Interface Schematic

Figure 4: RPB+ Cable Connections

4. Start-Up / Configuration

1. Access the RPB+ Command Mode: The RPB+ is

transparent to parity and will accept 7 or 8 bit characters,

but will always answer back at 8 bits, no parity. Make

certain your communications program (e.g. ProComm) is

set for the appropriate baud rate, bits, and parity. It is also

recommended to set the communications program for TTY

mode.

a) Via Modem: Start your communications program.

Dial the external modem connected to the RPB+. Wait

for the Connect message and proceed to Step 2.

b) Via Local PC: Start your communications program.

2. Password: If the Password function is enabled, the unit

will display a prompt. Key in the Password and press

[Enter]. If the password has not yet been defined, just

press [Enter].

Notes:

·The Password feature is case sensitive.

·If you forget your password, press the Default

Button when the Password Prompt appears, then

invoke the /P command to display the Password.

3. The RPB+ will display the Status Screen (Figure 5).

4. When the "RPB+>" prompt appears, type /P [Enter] to

define system parameters. The unit will display a series of

prompts.

Notes:

·RPB+ commands are not case sensitive.

·To skip a prompt without changing its current

definition, press [Enter].

·To exit from the Define Parameters function, press

[Esc] at any time. Parameters defined up to that

point will be saved.

a) Location: Key in a text string that describes the RPB+

location (up to 23 characters).

Page 6

RPB+ User's Guide

b) Password: To re-define the password (Default =

[Enter]), key in the new password (up to 8 characters)

and press [Enter]. The password can include blank

spaces and higher order ASCII characters. Note that

the Backspace key will not function during password

definition.

c) Default (Power-Up Default): Allows the user to

define default On/Off conditions for each switched

plug as described in Section 4.1. Key in the desired

Power-Up Defaults and press [Enter].

d) Echo Mode: When Echo Mode is enabled, commands

sent to the RPB+ will be echoed back to your PC or

terminal, allowing keyboard entries to be displayed by

your communications program. To enable or disable

the Echo Mode, type Yor N, press [Enter], then

continue with the parameter definition routine. When

the “RPB+>” prompt returns, type /D [Enter].

Notes:

·The Echo Mode will not be enabled / disabled until

the /D command is invoked.

·If the Default String includes invalid or missing

characters, the /D command will not function.

e) Plug Labels: Allows the user to identify the device

connected to each plug (e.g. "SERVER"). Key in the

desired name (up to 16 characters) and press [Enter].

Page 7

Start-Up / Configuration

Location: WESTERN TELEMATIC, INC.

Default: 01110

Plug Label Condition

1 PRINTER OFF

2 SERVER ONE ON

3 SERVER TWO ON

4 MODEM BANK ON

5 FAX OFF

Command Summary:

/S Status

/P Enter Parameters

/D Set Plugs to Default

/X Exit

To Switch /n s Where n = Plug #, * = All, and s = ON/OFF/BOOT

RPB+>

Figure 5: The Status Screen

4.1. The Power-Up Default String

The Power-Up Default String allows the user to select default

On/Off conditions for each switched AC outlet. When the RPB+

is powered up, or when the /D command (Set Defaults) is

invoked, each outlet will be set according to the Default String.

Note:

·The Power-Up Default String includes five

characters; each character determines the default

On/Off condition for the corresponding plug. The

first character applies to Plug 1, the second

character applies to Plug 2, and etc..

·To set a plug to default "ON" enter a one (1); to set

a plug to default "OFF", enter a zero (0).

·If the Default String includes invalid or missing

characters, plugs will be switched “Off” when the

unit is powered up, regardless of the conditions

shown by the Status Screen. In addition, the /D

command will not function.

Example 1: To set default On/Off conditions as follows:

ON: Plugs 1 and 5

OFF: Plugs 2, 3, and 4

The Power-Up Default String would be defined as "10001".

Example 2: To set default plug conditions as follows:

ON: Plugs 3, 4, and 5

OFF: Plugs 1 and 2

The Power-Up Default String would be defined as "00111".

Page 8

RPB+ User's Guide

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