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

12
HIGH SPEED COS-2
Table 3-1. Possible Settings of the Communications DIP Switch*
FUNCTION DIP SWITCH POSITIONS
12345678
Data Rate (bps)
115,200 OFF OFF OFF
57,600 ON OFF OFF
38,400 OFF ON OFF
19,200† ON ON OFF
9600 OFF OFF ON
2400 ON OFF ON
1200 OFF ON ON
600 ON ON ON
Data Format
8 data bits, no parity† OFF OFF
8 data bits, no parity ON OFF
7 data bits, odd parity OFF ON
7 data bits, even parity ON ON
Operating Mode
Normal† OFF
Self-Test ON
Pause for Graphics Mode
1 millisecond† OFF OFF
10 milliseconds ON OFF
100 milliseconds OFF ON
500 milliseconds ON ON
*A switch position is ON when it is down (closer to the number that identifies it).
†Default setting.

13
CHAPTER 3: Configuration
Table 3-2. Possible Settings of the Arming-Code DIP Switch*
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII NAME 1 2 3 4 5 6 7 8
00 CTRL-@ NUL OFF OFF OFF OFF OFF OFF OFF OFF
01 CTRL-A SOH ON OFF OFF OFF OFF OFF OFF OFF
02 CTRL-B STX OFF ON OFF OFF OFF OFF OFF OFF
03 CTRL-C ETX ON ON OFF OFF OFF OFF OFF OFF
04† CTRL-D EOT OFF OFF ON OFF OFF OFF OFF OFF
05 CTRL-E ENQ ON OFF ON OFF OFF OFF OFF OFF
06 CTRL-F ACK OFF ON ON OFF OFF OFF OFF OFF
07 CTRL-G BEL ON ON ON OFF OFF OFF OFF OFF
08 CTRL-H BS OFF OFF OFF ON OFF OFF OFF OFF
09 CTRL-I HT ON OFF OFF ON OFF OFF OFF OFF
0A CTRL-J LF OFF ON OFF ON OFF OFF OFF OFF
0B CTRL-K VT ON ON OFF ON OFF OFF OFF OFF
0C CTRL-L FF OFF OFF ON ON OFF OFF OFF OFF
0D CTRL-M CR ON OFF ON ON OFF OFF OFF OFF
0E CTRL-N SO OFF ON ON ON OFF OFF OFF OFF
0F CTRL-O Sl ON ON ON ON OFF OFF OFF OFF
10 CTRL-P DLE OFF OFF OFF OFF ON OFF OFF OFF
11 CTRL-Q DC1 ON OFF OFF OFF ON OFF OFF OFF
12 CTRL-R DC2 OFF ON OFF OFF ON OFF OFF OFF
13 CTRL-S DC3 ON ON OFF OFF ON OFF OFF OFF
14 CTRL-T DC4 OFF OFF ON OFF ON OFF OFF OFF
15 CTRL-U NAK ON OFF ON OFF ON OFF OFF OFF
16 CTRL-V SYN OFF ON ON OFF ON OFF OFF OFF
17 CTRL-W ETB ON ON ON OFF ON OFF OFF OFF
18 CTRL-X CAN OFF OFF OFF ON ON OFF OFF OFF
19 CTRL-Y EM ON OFF OFF ON ON OFF OFF OFF
1A CTRL-Z SUB OFF ON OFF ON ON OFF OFF OFF
1B CTRL-[ ESC ON ON OFF ON ON OFF OFF OFF
1C CTRL-\ FS OFF OFF ON ON ON OFF OFF OFF
1D CTRL-] GS ON OFF ON ON ON OFF OFF OFF
1E CTRL-^ RS OFF ON ON ON ON OFF OFF OFF
1F CTRL-_ US ON ON ON ON ON OFF OFF OFF
20 space SP OFF OFF OFF OFF OFF ON OFF OFF
*A switch position is ON when it is down (closer to the number that identifies it).
†Default setting.

14
HIGH SPEED COS-2
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
21 ! ON OFF OFF OFF OFF ON OFF OFF
22 " OFF ON OFF OFF OFF ON OFF OFF
23 # ON ON OFF OFF OFF ON OFF OFF
24 $ OFF OFF ON OFF OFF ON OFF OFF
25 % ON OFF ON OFF OFF ON OFF OFF
26 & OFF ON ON OFF OFF ON OFF OFF
27 ' ON ON ON OFF OFF ON OFF OFF
28 ( OFF OFF OFF ON OFF ON OFF OFF
29 ) ON OFF OFF ON OFF ON OFF OFF
2A * OFF ON OFF ON OFF ON OFF OFF
2B + ON ON OFF ON OFF ON OFF OFF
2C , OFF OFF ON ON OFF ON OFF OFF
2D - ON OFF ON ON OFF ON OFF OFF
2E . OFF ON ON ON OFF ON OFF OFF
2F / ON ON ON ON OFF ON OFF OFF
30 0 OFF OFF OFF OFF ON ON OFF OFF
31 1 ON OFF OFF OFF ON ON OFF OFF
32 2 OFF ON OFF OFF ON ON OFF OFF
33 3 ON ON OFF OFF ON ON OFF OFF
34 4 OFF OFF ON OFF ON ON OFF OFF
35 5 ON OFF ON OFF ON ON OFF OFF
36 6 OFF ON ON OFF ON ON OFF OFF
37 7 ON ON ON OFF ON ON OFF OFF
38 8 OFF OFF OFF ON ON ON OFF OFF
39 9 ON OFF OFF ON ON ON OFF OFF
3A : OFF ON OFF ON ON ON OFF OFF
3B ; ON ON OFF ON ON ON OFF OFF
3C < OFF OFF ON ON ON ON OFF OFF
3D = ON OFF ON ON ON ON OFF OFF
3E > OFF ON ON ON ON ON OFF OFF
3F? ONONONONONONOFFOFF
40 @ OFF OFF OFF OFF OFF OFF ON OFF
41 A ON OFF OFF OFF OFF OFF ON OFF
42 B OFF ON OFF OFF OFF OFF ON OFF
43 C ON ON OFF OFF OFF OFF ON OFF
44 D OFF OFF ON OFF OFF OFF ON OFF
45 E ON OFF ON OFF OFF OFF ON OFF
46 F OFF ON ON OFF OFF OFF ON OFF
47 G ON ON ON OFF OFF OFF ON OFF

15
CHAPTER 3: Configuration
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
48 H OFF OFF OFF ON OFF OFF ON OFF
49 I ON OFF OFF ON OFF OFF ON OFF
4A J OFF ON OFF ON OFF OFF ON OFF
4B K ON ON OFF ON OFF OFF ON OFF
4C L OFF OFF ON ON OFF OFF ON OFF
4D M ON OFF ON ON OFF OFF ON OFF
4E N OFF ON ON ON OFF OFF ON OFF
4F O ON ON ON ON OFF OFF ON OFF
50 P OFF OFF OFF OFF ON OFF ON OFF
51 Q ON OFF OFF OFF ON OFF ON OFF
52 R OFF ON OFF OFF ON OFF ON OFF
53 S ON ON OFF OFF ON OFF ON OFF
54 T OFF OFF ON OFF ON OFF ON OFF
55 U ON OFF ON OFF ON OFF ON OFF
56 V OFF ON ON OFF ON OFF ON OFF
57 W ON ON ON OFF ON OFF ON OFF
58 X OFF OFF OFF ON ON OFF ON OFF
59 Y ON OFF OFF ON ON OFF ON OFF
5A Z OFF ON OFF ON ON OFF ON OFF
5B [ ON ON OFF ON ON OFF ON OFF
5C \ OFF OFF ON ON ON OFF ON OFF
5D ] ON OFF ON ON ON OFF ON OFF
5E ^ OFF ON ON ON ON OFF ON OFF
5F _ ON ON ON ON ON OFF ON OFF
60 ` OFF OFF OFF OFF OFF ON ON OFF
61 a ON OFF OFF OFF OFF ON ON OFF
62 b OFF ON OFF OFF OFF ON ON OFF
63 c ON ON OFF OFF OFF ON ON OFF
64 d OFF OFF ON OFF OFF ON ON OFF
65 e ON OFF ON OFF OFF ON ON OFF
66 f OFF ON ON OFF OFF ON ON OFF
67 gON ON ON OFF OFF ON ON OFF
68 h OFF OFF OFF ON OFF ON ON OFF
69 i ON OFF OFF ON OFF ON ON OFF
6A j OFF ON OFF ON OFF ON ON OFF
6B k ON ON OFF ON OFF ON ON OFF
6C I OFF OFF ON ON OFF ON ON OFF
6D m ON OFF ON ON OFF ON ON OFF
6E n OFF ON ON ON OFF ON ON OFF

16
HIGH SPEED COS-2
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
6F o ON ON ON ON OFF ON ON OFF
70 p OFF OFF OFF OFF ON ON ON OFF
71 q ON OFF OFF OFF ON ON ON OFF
72 r OFF ON OFF OFF ON ON ON OFF
73 s ON ON OFF OFF ON ON ON OFF
74 t OFF OFF ON OFF ON ON ON OFF
75 u ON OFF ON OFF ON ON ON OFF
76 v OFF ON ON OFF ON ON ON OFF
77 w ON ON ON OFF ON ON ON OFF
78 x OFF OFF OFF ON ON ON ON OFF
79 y ON OFF OFF ON ON ON ON OFF
7A z OFF ON OFF ON ON ON ON OFF
7B { ON ON OFF ON ON ON ON OFF
7C I OFF OFF ON ON ON ON ON OFF
7D } ON OFF ON ON ON ON ON OFF
7E ~ OFF ON ON ON ON ON ON OFF
7F DEL ON ON ON ON ON ON ON OFF
80 OFF OFF OFF OFF OFF OFF OFF ON
81 ON OFF OFF OFF OFF OFF OFF ON
82 OFF ON OFF OFF OFF OFF OFF ON
83 ON ON OFF OFF OFF OFF OFF ON
84 OFF OFF ON OFF OFF OFF OFF ON
85 ON OFF ON OFF OFF OFF OFF ON
86 OFF ON ON OFF OFF OFF OFF ON
87 ON ON ON OFF OFF OFF OFF ON
88 OFF OFF OFF ON OFF OFF OFF ON
89 ON OFF OFF ON OFF OFF OFF ON
8A OFF ON OFF ON OFF OFF OFF ON
8B ON ON OFF ON OFF OFF OFF ON
8C OFF OFF ON ON OFF OFF OFF ON
8D ON OFF ON ON OFF OFF OFF ON
8E OFF ON ON ON OFF OFF OFF ON
8F ON ON ON ON OFF OFF OFF ON
90 OFF OFF OFF OFF ON OFF OFF ON
91 ON OFF OFF OFF ON OFF OFF ON
92 OFF ON OFF OFF ON OFF OFF ON
93 ON ON OFF OFF ON OFF OFF ON
94 OFF OFF ON OFF ON OFF OFF ON
95 ON OFF ON OFF ON OFF OFF ON

17
CHAPTER 3: Configuration
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
96 OFF ON ON OFF ON OFF OFF ON
97 ON ON ON OFF ON OFF OFF ON
98 OFF OFF OFF ON ON OFF OFF ON
99 ON OFF OFF ON ON OFF OFF ON
9A OFF ON OFF ON ON OFF OFF ON
9B ON ON OFF ON ON OFF OFF ON
9C OFF OFF ON ON ON OFF OFF ON
9D ON OFF ON ON ON OFF OFF ON
9E OFF ON ON ON ON OFF OFF ON
9F ON ON ON ON ON OFF OFF ON
A0 OFF OFF OFF OFF OFF ON OFF ON
A1 ON OFF OFF OFF OFF ON OFF ON
A2 OFF ON OFF OFF OFF ON OFF ON
A3 ON ON OFF OFF OFF ON OFF ON
A4 OFF OFF ON OFF OFF ON OFF ON
A5 ON OFF ON OFF OFF ON OFF ON
A6 OFF ON ON OFF OFF ON OFF ON
A7 ON ON ON OFF OFF ON OFF ON
A8 OFF OFF OFF ON OFF ON OFF ON
A9 ON OFF OFF ON OFF ON OFF ON
AA OFF ON OFF ON OFF ON OFF ON
AB ON ON OFF ON OFF ON OFF ON
AC OFF OFF ON ON OFF ON OFF ON
AD ON OFF ON ON OFF ON OFF ON
AE OFF ON ON ON OFF ON OFF ON
AF ON ON ON ON OFF ON OFF ON
B0 OFF OFF OFF OFF ON ON OFF ON
B1 ON OFF OFF OFF ON ON OFF ON
B2 OFF ON OFF OFF ON ON OFF ON
B3 ON ON OFF OFF ON ON OFF ON
B4 OFF OFF ON OFF ON ON OFF ON
B5 ON OFF ON OFF ON ON OFF ON
B6 OFF ON ON OFF ON ON OFF ON
B7 ON ON ON OFF ON ON OFF ON
B8 OFF OFF OFF ON ON ON OFF ON
B9 ON OFF OFF ON ON ON OFF ON
BA OFF ON OFF ON ON ON OFF ON
BB ON ON OFF ON ON ON OFF ON
BC OFF OFF ON ON ON ON OFF ON

18
HIGH SPEED COS-2
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
BD ON OFF ON ON ON ON OFF ON
BE OFF ON ON ON ON ON OFF ON
BF ON ON ON ON ON ON OFF ON
C0 OFF OFF OFF OFF OFF OFF ON ON
C1 ON OFF OFF OFF OFF OFF ON ON
C2 OFF ON OFF OFF OFF OFF ON ON
C3 ON ON OFF OFF OFF OFF ON ON
C4 OFF OFF ON OFF OFF OFF ON ON
C5 ON OFF ON OFF OFF OFF ON ON
C6 OFF ON ON OFF OFF OFF ON ON
C7 ON ON ON OFF OFF OFF ON ON
C8 OFF OFF OFF ON OFF OFF ON ON
C9 ON OFF OFF ON OFF OFF ON ON
CA OFF ON OFF ON OFF OFF ON ON
CB ON ON OFF ON OFF OFF ON ON
CC OFF OFF ON ON OFF OFF ON ON
CD ON OFF ON ON OFF OFF ON ON
CE OFF ON ON ON OFF OFF ON ON
CF ON ON ON ON OFF OFF ON ON
D0 OFF OFF OFF OFF ON OFF ON ON
D1 ON OFF OFF OFF ON OFF ON ON
D2 OFF ON OFF OFF ON OFF ON ON
D3 ON ON OFF OFF ON OFF ON ON
D4 OFF OFF ON OFF ON OFF ON ON
D5 ON OFF ON OFF ON OFF ON ON
D6 OFF ON ON OFF ON OFF ON ON
D7 ON ON ON OFF ON OFF ON ON
D8 OFF OFF OFF ON ON OFF ON ON
D9 ON OFF OFF ON ON OFF ON ON
DA OFF ON OFF ON ON OFF ON ON
DB ON ON OFF ON ON OFF ON ON
DC OFF OFF ON ON ON OFF ON ON
DD ON OFF ON ON ON OFF ON ON
DE OFF ON ON ON ON OFF ON ON
DF ON ON ON ON ON OFF ON ON
E0 OFF OFF OFF OFF OFF ON ON ON
E1 ON OFF OFF OFF OFF ON ON ON
E2 OFF ON OFF OFF OFF ON ON ON
E3 ON ON OFF OFF OFF ON ON ON

19
CHAPTER 3: Configuration
ARMING CODE DIP SWITCH POSITIONS
HEX ASCII 12345678
E4 OFF OFF ON OFF OFF ON ON ON
E5 ON OFF ON OFF OFF ON ON ON
E6 OFF ON ON OFF OFF ON ON ON
E7 ON ON ON OFF OFF ON ON ON
E8 OFF OFF OFF ON OFF ON ON ON
E9 ON OFF OFF ON OFF ON ON ON
EA OFF ON OFF ON OFF ON ON ON
EB ON ON OFF ON OFF ON ON ON
EC OFF OFF ON ON OFF ON ON ON
ED ON OFF ON ON OFF ON ON ON
EE OFF ON ON ON OFF ON ON ON
EF ON ON ON ON OFF ON ON ON
F0 OFF OFF OFF OFF ON ON ON ON
F1 ON OFF OFF OFF ON ON ON ON
F2 OFF ON OFF OFF ON ON ON ON
F3 ON ON OFF OFF ON ON ON ON
F4 OFF OFF ON OFF ON ON ON ON
F5 ON OFF ON OFF ON ON ON ON
F6 OFF ON ON OFF ON ON ON ON
F7 ON ON ON OFF ON ON ON ON
F8 OFF OFF OFF ON ON ON ON ON
F9 ON OFF OFF ON ON ON ON ON
FA OFF ON OFF ON ON ON ON ON
FB ON ON OFF ON ON ON ON ON
FC OFF OFF ON ON ON ON ON ON
FD ON OFF ON ON ON ON ON ON
FE OFF ON ON ON ON ON ON ON
FF ON ON ON ON ON ON ON ON

20
HIGH SPEED COS-2
4.1 Placement and Mounting
Place the High Speed COS-2 in a cool, dry place close to an electrical outlet.
It should be within 50 ft. (15.2 m) of the devices you want to connect to it.
Your package also includes a special “hook-and-loop fastener” fabric strip
that allows you to mount the COS-2 in a convenient place, such as on a PC
(see Figure 4-1 below). To mount the COS-2, remove the white backing of
this strip, then attach the side with the “hooked” material to the COS-2 and
the side with the felt material to any smooth, flat surface. When the two
materials touch, they will stick together, holding the switch in place. The
materials can later be pulled apart.
4. Installation
Figure 4-1. Mounting the High Speed COS-2 on a PC.

21
CHAPTER 4: Installation
4.2 Cabling
This section describes the cables and procedures you’ll use to connect
equipment to the High Speed COS-2. Refer to Figure 4-2 on the next page
for an illustration of a typical application.
4.2.1 C OMPUTER (
S )↔COS-2
For each computer you want to connect to the High Speed COS-2, you’ll
need a cable containing at least 5 wires with a DB25 male connector on the
COS-2 end. If a computer is an IBM®AT®or PS/2®or compatible, the cable
should have a DB9 female connector on the computer end. If a computer is
an IBM PC/XT™ or compatible, the cable should have a DB25 female
connector on the computer end. T he cable(s) should be wired as shown in
Tables 4-1 and 4-2 on the next page. (Our product codes for cables pinned
this way are EVMBMC for the DB9 type and ECM12C for the DB25 type.)
Connect the female end of each of these cables to the serial port (COM1,
COM2, etc.) on the selected computer. If the selected computer is the
“source” or “master” (the one that’s doing the switching), connect the male
end of the cable to the COS-2’s port “A.” If the computer is a “destination”
or “slave” (one that’s being switched), connect the male end of the cable to
the COS-2’s port “B” or “C.”
4.2.2 COS-2 TO S ERIAL P RINTER ( S )
For each serial printer you want to connect to the High Speed COS-2, you’ll
need a cable containing at least 5 wires with DB25 male connectors on each
end. The cable(s) should be wired as shown in Table 4-2 on the next page.
(Our product code for a cable pinned this way is ECM12C.)
Connect one end of each of these cables to the input port on the selected
printer. Connect the other end to the COS-2’s port “B” or “C.”