Black Box Switch SW555A User Manual

© Copyright 2001. Black Box Corporation. All rights reserved.  
1000 Park Drive  
Lawrence, PA 15055-1018  
724-746-5500  
Fax 724-746-0746  
 
 
FCC INFORMATION  
FEDERAL COMMUNICATIONS COMMISSION  
AND  
INDUSTRY CANADA  
RADIO FREQUENCY INTERFERENCE STATEMENTS  
This equipment generates, uses, and can radiate radio frequency energy and if not  
installed and used properly, that is, in strict accordance with the manufacturer’s  
instructions, may cause interference to radio communication. It has been tested  
and found to comply with the limits for a Class A computing device in accordance  
with the specifications in Subpart J of Part 15 of FCC rules, which are designed to  
provide reasonable protection against such interference when the equipment is  
operated in a commercial environment. Operation of this equipment in a  
residential area is likely to cause interference, in which case the user at his own  
expense will be required to take whatever measures may be necessary to correct  
the interference.  
Changes or modifications not expressly approved by the party responsible  
for compliance could void the user’s authority to operate the equipment.  
This digital apparatus does not exceed the Class A limits for radio noise emission from  
digital apparatus set out in the Radio Interference Regulation of Industry Canada.  
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites  
applicables aux appareils numériques de la classe A prescrites dans le Règlement sur le  
brouillage radioélectrique publié par Industrie Canada.  
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REMOTE MANAGEMENT SWITCH  
NORMAS OFICIALES MEXICANAS (NOM)  
ELECTRICAL SAFETY STATEMENT  
INSTRUCCIONES DE SEGURIDAD  
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de  
que el aparato eléctrico sea operado.  
2. Las instrucciones de seguridad y operación deberán ser guardadas para  
referencia futura.  
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de  
operación deben ser respetadas.  
4. Todas las instrucciones de operación y uso deben ser seguidas.  
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca  
de la tina de baño, lavabo, sótano mojado o cerca de una alberca, etc..  
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que  
sean recomendados por el fabricante.  
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea  
recomendado por el fabricante.  
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá  
a lo descrito en las instrucciones de operación. Todo otro servicio deberá ser  
referido a personal de servicio calificado.  
9. El aparato eléctrico debe ser situado de tal manera que su posición no  
interfiera su uso. La colocación del aparato eléctrico sobre una cama, sofá,  
alfombra o superficie similar puede bloquea la ventilación, no se debe colocar  
en libreros o gabinetes que impidan el flujo de aire por los orificios de  
ventilación.  
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor  
como radiadores, registros de calor, estufas u otros aparatos (incluyendo  
amplificadores) que producen calor.  
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del  
tipo descrito en el instructivo de operación, o como se indique en el aparato.  
2
 
NOM STATEMENT  
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización  
del equipo no sea eliminada.  
13. Los cables de la fuente de poder deben ser guiados de tal manera que no  
sean pisados ni pellizcados por objetos colocados sobre o contra ellos,  
poniendo particular atención a los contactos y receptáculos donde salen del  
aparato.  
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las  
recomendaciones del fabricante.  
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas  
de energia.  
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea  
usado por un largo periodo de tiempo.  
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean  
derramados sobre la cubierta u orificios de ventilación.  
18. Servicio por personal calificado deberá ser provisto cuando:  
A: El cable de poder o el contacto ha sido dañado; u  
B: Objectos han caído o líquido ha sido derramado dentro del aparato; o  
C: El aparato ha sido expuesto a la lluvia; o  
D: El aparato parece no operar normalmente o muestra un cambio en su  
desempeño; o  
E: El aparato ha sido tirado o su cubierta ha sido dañada.  
3
 
REMOTE MANAGEMENT SWITCH  
TRADEMARKS USED IN THIS MANUAL  
®
IBM is a registered trademark of International Business Machines Corporation.  
Any other trademarks mentioned in this manual are acknowledged to be the property of the  
trademark owners.  
4
 
CONTENTS  
Contents  
Chapter  
Page  
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
2. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
2.1 Port Selector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
2.2 Power Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
3.1 Master and Switched Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
3.2 RTS/DTR Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
3.3 Internal Modem Option (SW556A, SW556AE) . . . . . . . . . . . . . . . . . . . . 11  
4. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.1 Four Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.1.1 Menu Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.1.2 Escape Code Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.1.3 Lead Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.1.4 Manual Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.2 Menu Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
4.2.1 Port Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
4.2.2 Power Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
4.2.3 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
4.3 Escape Code Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
4.4 Lead Control of Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
4.5 Manual Control of Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19  
5
 
REMOTE MANAGEMENT SWITCH  
1. Specifications  
Speed: 300 bps to 115.2 kbps  
Character Format: 8 data bits, no parity, and 1 stop bit; or 7 data bits, even or odd  
parity, and 1 stop bit  
Interface: RS-232 asynchronous  
Connectors: (4) DB25 subminiature female for ports A through D; (1) DB25  
subminiature male for master port (pins supported: 1–8, 20)  
Power: SW555A, SW556A: Input: 120 VAC, 60 Hz, via a standard NEMA 5-15  
plug on a 6-ft. (1.8-m) 14/3 line cord; Outlets: Standard NEMA 5-15  
receptacle; Current maximums: 15 amps per receptacle, 15 amps combined  
total of all receptacles; SW555AE, SW556AE: 230 VAC, 50 Hz  
Size: 1.75"H x 19"W x 6.25"D (4.5 x 48.3 x 15.9 cm)  
Weight: 5 lb. (2.3 kg)  
6
 
CHAPTER 2: Introduction  
2. Introduction  
The Remote Management Switch (part number SW555A or SW555AE) can be  
used for serial switching and as an AC power control system. A Remote  
Management Switch with Modem (part number SW556A [includes 33.6 kbps  
modem] or SW556AE [includes 56 kbps modem]) is also available.  
MANUAL  
Figure 2-1. Front and rear views of the Switch.  
2.1 Port Selector  
As a port selector, the Remote Management Switch allows one master RS-232  
asynchronous channel to be selectively switched to any of up to 4 ports. You can  
use the Switch as a port selector to provide access from one modem or terminal to  
multiple systems. Typically, you can use the Switch to access out-of-band  
management ports on multiple devices. By using simple escape strings or menu  
commands, you can select which port to access. Ports can also access the master by  
raising a control lead. While accessing a port, the Switch is passive, allowing all data  
to pass until it receives a user-programmable command.  
2.2 Power Controller  
You can control the four AC outlets on the Remote Management Switch. The  
Switch accepts code or menu commands from its master port to power on, off, or  
reboot the outlets.  
7
 
REMOTE MANAGEMENT SWITCH  
3. Installation  
3.1 Master and Switched Ports  
Connect the Remote Management Switch’s ports A through D found on the rear  
of the unit to your RS-232 devices. Each port uses a DB25 subminiature connector  
and supports the following leads for asynchronous communications.  
Table 3-1. DB25 connector supported leads.  
Pin  
2
Designation  
Transmit Data  
3
Receive Data  
4
Request to Send  
Clear to Send  
5
6
Data Set Ready  
Signal Ground  
Data Carrier Detect  
Data Terminal Ready  
7
8
20  
Remote  
Management  
Switch  
Figure 3-1. System diagram.  
8
 
CHAPTER 3: Installation  
The four switched ports, A through D, are wired DCE (output data on pin 3, RD).  
The master port is wired as DTE. To directly connect a terminal device to the  
master port, you need a null-modem cable (see Figure 3-2).  
Control leads required vary from device to  
device. Consult your device’s operations  
manual for details on your specific needs.  
Figure 3-2. Null-modem connection.  
9
 
REMOTE MANAGEMENT SWITCH  
3.2 RTS/DTR Selection  
WARNING  
To avoid electrical shock, you MUST remove power to the Remote  
Management Switch BEFORE opening the top cover.  
Jumpers JP1 through JP4 let you select RTS (default) or DTR as the control lead  
used for lead control. To access these jumpers, disconnect the power source and  
remove the top cover of the Remote Management Switch. The jumpers are located  
behind the B and D port connectors (see Figure 3-3).  
Figure 3-3. Location of components.  
10  
 
CHAPTER 3: Installation  
3.3 Internal Modem Option (SW556A, SW556AE)  
An internal modem is included in two models of the Remote Management Switch.  
Part number SW556A features a 33.6-kbps modem, while part number SW556AE  
incorporates a 56-kbps modem.  
Connect the modem to the dial line via an RS-232 to modular adapter (included).  
This adapter connects to the master port and to an RJ-11 modular jack. The  
modem complies with FCC Class A and uses the standard AT command set.  
Modular  
Adapter  
Figure 3-4. Connecting the modem to a dial line.  
11  
 
REMOTE MANAGEMENT SWITCH  
4. Operation  
4.1 Four Modes of Operation  
You can operate the Remote Management Switch in four possible ways: menu  
selection, escape code sequences, lead control, and manual control.  
4.1.1 MENU SELECTION  
By connecting to the master port, you can switch to any of the four ports (A  
through D) or operate any of the four relays. The menu system allows convenient  
naming of each port and relay, as well as allowing setup of all Remote Management  
Switch parameters. A login procedure protects the menu system from  
unauthorized access.  
4.1.2 ESCAPE CODE SEQUENCES  
You can bypass menu operation by transmitting escape codes to the master port of  
the Switch. You can partially define these escape codes through the setup menus.  
4.1.3 LEAD CONTROL  
This option allows any of the four ports to access the master port by raising its  
Request to Send (RTS) or Data Terminal Ready (DTR) control lead. This is an  
alternative to menu selection (described in Section 4.1.1).  
4.1.4 MANUAL CONTROL  
You can select ports locally via a front-panel pushbutton on the Switch.  
4.2 Menu Control  
You can control the Remote Management Switch principally through an ASCII  
terminal interface. Connect to the modem using a terminal or PC running  
terminal emulation software. The factory default parameters for communication  
are (9600, 8, n, 1):  
• 9600 bits per second  
• 8 data bits  
• no parity  
• 1 stop bit  
12  
 
CHAPTER 4: Operation  
The Remote Management Switch automatically detects the rate of operation,  
allowing connection at 300 bps to 115.2 kbps. Using the default speed will allow  
the fastest access to the unit. To invoke the auto rate detector, press the Enter key  
one or more times as needed. When the Switch detects the rate, it will respond  
with the security login prompt:  
Login >  
Enter the default security code (the default code is “TEST,” all caps, case-sensitive).  
Three incorrect attempts to enter the security code will cause the Switch to  
terminate the call. When you enter the correct code, the main menu appears.  
Remote Management Switch  
Ver XXX  
1) Port Selection  
2) Relay Control  
3) Programming  
X) Logout  
Enter >  
Figure 4-1. Main menu.  
4.2.1 PORT SELECTION  
From the main menu, choose 1) Port Selection. This selection connects the master  
port to any of ports A through D. The port-selection menu shown in Figure 4-2  
appears.  
A) PORT A  
B) PORT B  
C) PORT C  
D) PORT D  
X) Exit  
Enter Port >  
Figure 4-2. Port-selection menu.  
Once you select a port, the Switch will clear the screen and generate the following  
message:  
x Selected (x=the programmed name of the port)  
Enter ESC{PASSWORD}ESC to return to menu  
13  
 
REMOTE MANAGEMENT SWITCH  
At this point, the master port is connected through to the port selected. The  
Remote Management Switch is passive to the messages sent between the master  
port and the port selected. To terminate the session with the current port and  
bring back the menu, enter the escape character plus the security code and  
another escape character (for example: <Esc>TEST<Esc>).  
4.2.2 POWER CONTROL  
This selection allows control of the outlets in the Remote Management Switch.  
1) Eng Outlet 1  
2) Eng Outlet 2  
3) Den Outlet 3  
4) Eng Outlet 4  
# - Select relay to toggle  
P# - Pulse relay  
X - Exit  
Enter >  
Figure 4-3. Controlling outlets.  
Again, you can name each relay. Eng (Energized or ON) and Den (De-energized,  
or OFF) display the current status of the relay. To toggle the relay, simply enter the  
relay number, followed by Enter.  
The outlet can also be cycled (pulsed) by entering P plus the number (for  
example, P1 to cycle relay number 1). The length of time the outlet pulses is preset  
through the programming menu. While the relay is cycling, a cycling message will  
be displayed as shown in Figure 4-4.  
1) Den  
2) Eng  
3) Den  
4) Eng  
Outlet 1=>cycling  
Outlet 2  
Outlet 3  
Outlet 4  
# - Select relay to toggle  
P# - Pulse relay  
X - Exit  
Enter >  
Figure 4-4. Cycling.  
14  
 
CHAPTER 4: Operation  
4.2.3 PROGRAMMING  
1) Device labels  
2) Password  
3) Baud: 19200  
4) Parity/Data: N,8  
5) Lead: N  
6) Resp: Y  
7) Mode: Modem  
8) Cycle time: 5  
9) Time out: 0  
X) Exit  
Enter >1  
Figure 4-5. Programming menu.  
1) Device Labels. This lets you change the screen labels for the ports and power-  
control outlets.  
A) PORT A  
B) PORT B  
C) PORT C  
D) PORT D  
1) Outlet 1  
2) Outlet 2  
3) Outlet 3  
4) Outlet 4  
X) Exit  
Enter >  
Figure 4-6. Device labels.  
Enter the label you want to change. The current label is displayed, along with a  
prompt for the new name. Type in a new label and then confirm the selection.  
Labels can be up to 24 characters.  
CURRENT LABEL PORT A PORT A  
NEW LABEL PORT A> Your New Name  
PORT LABEL CHANGED FROM PORT A  
TO Your New Name  
SAVE CHANGES? (Y/N) >  
Figure 4-7. Entering new label name.  
15  
 
REMOTE MANAGEMENT SWITCH  
2) Password. The password is used for logging into the menu system and in every  
escape sequence. The factory-default password is “TEST.” The security code may be 1  
to 8 characters. These characters can be any ASCII character except NULL (00  
hex). To change the password, you must re-enter the current password. A prompt  
for a new password appears. After you enter the new password, a confirmation  
appears.  
LOGIN > TEST  
ENTER NEW PASSWORD > TEST  
RE-ENTER NEW PASSWORD > TEST  
PASSWORD CHANGED  
Figure 4-8. Entering a new password.  
3) Baud Rate. The Remote Management Switch can operate at speeds from 300 to  
115,200 bps. Simply enter the desired baud rate followed by the Enter key. Valid  
selections are 300, 600, 1200, 2400, 4800, 9600, 19,200, 38,400, 57,600, and  
115,200.  
The baud rate set only affects the code and menu control of the Switch. Once  
connection to a port is made, the Switch is transparent to the speed and character  
format sent.  
4) Parity and Data Bits. The Remote Management Switch can operate with a 7- or  
8-bit data frame, and odd, even, or no parity. You need only set the parity: None,  
Even, or Odd. The Switch automatically determines the number of data bits and  
stop bits.  
5) Lead Control. This selection determines whether control leads from the  
switched ports can be used to access the master port. The factory default is lead  
control disabled. Select Yes or No.  
6) Command Response. The Switch can send a response to escape sequences to let  
the operator know that the switch has taken place. The factory default is responses  
disabled. Select Yes or No to change the setting.  
7) Modem or Terminal Mode. Sets the Switch for either terminal or modem use.  
Each time you select 7 Mode, this setting toggles.  
• Modem mode: The Remote Management Switch monitors the DCD lead from  
the master port. Once the call is established, send the Escape to invoke the  
auto rate detector, if required, then the Enter key to generate the Login  
prompt, or any valid control code. Three unsuccessful login attempts causes  
the Switch to hang up the modem. Use this setting when the Switch is  
connected to a dial modem.  
16  
 
CHAPTER 4: Operation  
• Terminal mode: The Remote Management Switch does not monitor the  
connection status of the master port. This mode allows an unlimited number  
of login attempts. Each time it receives an enter key, the Switch issues a new  
login prompt. After three tries, the login prompt is suppressed to allow you to  
enter control codes. Use this mode for direct cable connections from a PC or  
terminal to the Switch.  
8) Cycle Time. Sets the length of time in a relay Cycle command. This time is set  
once for all relays controlled. Selections from 1 to 255 are valid.  
9) Time Out. To prevent one port from dominating access to the master port and  
locking out other selections, the Switch incorporates a timeout feature. With this  
feature enabled, the Switch monitors the data activity received by the master port.  
When no data is received by the time as set, the currently selected port is de-  
selected. Set the Timeout from 1 to 99 minutes. Setting the Timeout to 0 (the  
default setting) disables the feature and allows unlimited time with no data  
received. The timeout feature affects all selection modes.  
X) Exit the Programming Mode. Exit the programming menu and activate all  
current settings. If you have changed the baud rate and/or character format, Exit  
will enable those changes. From the main menu, “X” terminates the current  
session and a new connection to the Remote Management Switch will be required.  
The calling system must terminate the session and hang up the modem.  
4.3 Escape Code Control  
The Remote Management Switch allows direct computer control using simple  
ASCII strings. These codes can control the port selection and relay operation. To  
access the Switch for code control, enter the commands as shown below. To invoke  
the auto-rate detector, press the Escape key one or more times, until the Switch  
responds with BLACK BOX READY.  
<Esc> The Escape character (Decimal 27 Hex 1B)  
<Sec> The Security code (Default=TEST)  
<x> The Port letter (A–D)  
<n> The Relay number (1–4)  
®
<EOT> The End of text character (Decimal 04 Hex 04 Ctrl+D on the IBM  
keyboard)  
Select Port  
<Esc><Sec><x>  
17  
 
REMOTE MANAGEMENT SWITCH  
Deselect Port <Esc><Sec><EOT>  
Toggle Outlet <Esc><Sec>R<n>  
Query Status <Esc><Sec>?  
Access Menu System <Esc><Sec><Esc>  
CODE CONTROL RESPONSES  
The Remote Management Switch has an option to allow confirmation of switching  
commands. With this option enabled, the Switch will report back:  
n selected  
Where “n” is the current port number or name  
(if programmed)  
no ports selected  
r<status>  
When all ports are de-selected  
Indicating the relay (number “r”) has been changed  
<status> will be ENERG for energize or DE-ENERG for  
de-energized status  
n selected  
1E 2D 3E 4D  
Response to Query command (E=Energized,  
D=De-energized)  
Responses to Code Control commands are optional and set via the Programming  
menu.  
4.4 Lead Control of Ports  
The Remote Management Switch can automatically select ports via control leads.  
You must set up this feature before using the Switch. Any port can access the  
master by raising the RTS or DTR lead (jumper selectable) provided no other port  
is already connected by Menu, Manual, or Code Control. If another port is  
connected, the request is placed in queue. The queue is first-in, first-out.  
Once a port has been connected via lead control, it remains connected until the  
control lead has gone low. If a port has been manually selected, and another port  
requests access, the manually selected port remains active until it is deselected via  
Menu, Code, or Manual Control.  
18  
 
CHAPTER 4: Operation  
4.5 Manual Control of Ports  
You can control the Switch manually via the pushbutton switch on the front panel.  
Each time you press the button, the port will cycle to the next port. To return the  
Switch to automatic operation, press the pushbutton switch for over two seconds.  
All port LEDs will turn off.  
The Timeout feature, if enabled, continues to operate when manual control is  
established. To override this feature, select Timeout=0 from the Programming  
menu.  
When manual control is selected, lead control is locked out. Escape codes will  
override the manual selection only in terminal mode.  
19  
 

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