Black Box COS-2 User manual

Black Box Corporation
The Source for Connectivity
®
®
P.O. Box 12800 • Pittsburgh, PA 15241 • [phone] • Fax [phone]
© Copyright 1996. Black Box Corporation. All rights reserved.

FEDERAL COMMUNICATIONS COMMISSION
AND
CANADIAN DEPARTMENT OF COMMUNICATIONS
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 the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de
classe A prescrites dans le Règlement sur le brouillage
radioélectrique publié par le ministère des Communications du
Canada.
TRADEMARKS USED IN THIS MANUAL
AT and PS/2 are registered trademarks, and PC/XT is a
trademark, of International Business Machines Corporation.
FCC AND DOC/MDC STATEMENTS
3

HIGH SPEED COS-2
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.
4

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.
5

HIGH SPEED COS-2
Contents
Chapter Page
1. Specifications ........................................................................................ 7
2. Introduction ......................................................................................... 9
3. Configuration ..................................................................................... 10
3.1 Selecting the Operating Mode ................................................... 10
3.2 Setting Communication Parameters ........................................... 10
3.3 Choosing an Arming Code .......................................................... 10
4. Installation .......................................................................................... 20
4.1 Placement and Mounting ............................................................ 20
4.2 Cabling ......................................................................................... 21
4.3 Power Connection ....................................................................... 23
5. Operation ........................................................................................... 24
5.1 Power-Up ..................................................................................... 24
5.2 Switching ...................................................................................... 24
5.3 The Self-Test ................................................................................ 25
6. Troubleshooting ................................................................................. 26
6.1 First Steps ..................................................................................... 26
6.2 Calling Your Supplier ................................................................. 26
6.3 Shipping and Packaging .............................................................. 27
6

7
CHAPTER 1: Specifications
Compliance — FCC Class A, DOC Class/MDC classe A
Interface — EIA RS-232 serial (all ports DCE)
Protocol — Asynchronous
Data Formats — Either 7 data bits with odd or even parity or 8 data
bits with no parity (user-selectable); always 1 stop bit
Data Rates — 115,200, 57,600, 38,400, 19,200, 9600, 2400, 1200,
and 600 bps (user-selectable)
Maximum
Distances — 50 ft. (15.2 m) to each connected device
User Controls — (2) Front-mounted slide switches: (1) for power,
(1) for switching mode (text, graphics, or
transparent);
(2) Bottom-mounted 8-position DIP switches for
arming code and communication parameters
Diagnostic — User-selectable power-up self-test
Indicators — (4) LEDs: (2) Operating Mode, (2) Printer Selected
Connectors — (3) DB25 female: (2) switched, (1) common
Leads/Signals
Supported — Pins 1, 2, 3, 5, 7, and 20 (PGND, TD, RD, CTS,
SGND, and DTR respectively); all but Pin 1 (PGND)
are switched;
Pins 6 and 8 (DSR and RLSD [DCD]) are tied high
1. Specifications

8
HIGH SPEED COS-2
Power — SW284A:
From wallmount power supply PS115:
Input: 115 VAC, 60 Hz;
Output: 9 VDC, 200 mA;
SW284AE:
From desktop power supply PS115E:
Input: 230 VAC, 50 Hz;
Output: 9 VDC, 200 mA
MTBF — 100,000 hours
Altitude
Tolerance — 15,000 ft. (4572 m)
Temperature
Tolerance — Operating: 32 to 104˚ F (0 to 40˚ C);
Storage: –4 to 158˚ F (–20 to 70˚ C)
Humidity
Tolerance — Up to 95% noncondensing
Size — 1"H x 3.2"W x 5.8"D (2.5 x 8.1 x 14.7 cm)
Weight — 1 lb. (0.5 kg)

9
CHAPTER 2: Introduction
With the High Speed COS-2, you can send a code sequence from an
asynchronous RS-232 device and switch between two other such devices. By
using this electronic method to switch, you avoid the problems that can
occur (especially with laser printers) when you switch manually. You can
select any two-byte sequence as the “arming code” (the code that causes the
COS-2 to switch).
As you can see, the COS-2 is very light and compact. For this reason,
we’ve included a hook-and-loop fastener that you can use to attach the unit
directly to any number of surfaces, including the housings of PCs and
printers.
The COS-2 has three modes of operation, which you can choose between
with the appropriate slide switch on the front panel. In Text mode, the user
can send the chosen arming code, followed by the ASCII character
corresponding to the desired port (either “B” or “C”), immediately
following other data. In Graphics mode, the arming code and port
character are not recognized unless they are preceded by a pause. (You can
select the length of this pause.) In Transparent mode, arming codes are not
recognized and switching does not occur.
2. Introduction

10
HIGH SPEED COS-2
Before you install the High Speed COS-2, you should configure it for your
application. Section 3.1 describes setting the front-panel Mode switch to
select your desired operating mode. Section 3.2 describes setting the right-
hand DIP switch so that the COS-2 operates using the communication
parameters that you need; Section 3.3 describes how to choose your arming
code by setting the left-hand DIP switch. For each of these sections, refer to
Figure 3-1 on the next page for the locations of the switches being discussed.
3.1 Selecting the Operating Mode
Use the slide switch labeled “Mode” on the front of the High-Speed COS-2
to select which operating mode you want the unit to start in. In the left-
hand position, the Text mode is selected (neither MODE LED is lit); in the
center position, the Graphics mode is selected (the left-hand MODE LED is
lit); in the right-hand position, the Transparent mode is selected (the right-
hand MODE LED is lit). (See Chapter 2 and Section 5.2 for descriptions of
these modes.)
3.2 Setting Communication Parameters
Use the right-hand DIP switch on the bottom of the High-Speed COS-2 to set
the COS-2’s communication parameters. As shown in Table 3-1 on page 12,
positions 1 through 3 control the data rate; positions 4 and 5 control the
data format; and positions 7 and 8 control the graphics-mode pause. (Use
position 6 during operation when you want the COS-2 to run its self-test.)
3.3 Choosing the Arming Code
Use the left-hand DIP switch on the bottom of the High-Speed COS-2 to set
the COS-2’s “arming code” (the character that alerts the COS-2 to an
impending switch). As shown in Table 3-2 on pages 13 through 19, each
possible setting of the eight DIP switch positions corresponds to a one-byte
character value from 00 to FF hex (0 to 255 decimal).
(Chapter 4, Installation, begins on page 20)
3. Configuration

11
CHAPTER 3: Configuration
OFF/ON TX GR TR
MODE SELECT
BC
PORT-A
PORT-C
PORT-B
POWER
HIGH SPEED
COS-2
Power
Switch
Power
Jack
Port C
Mode
Indicators
Port
Indicators
Port A
Master
Mode
Switch
Port B
Baud Rate
Switch
Arming Code
Switch
Figure 3-1. Layout of the High Speed COS-2’s connectors, controls,
and indicators.
Parameters