PerkinElmer 550 User manual

MODEL-550
USER'S
MANUAL
PERKIN-ELMER
Terminals Division
Randolph Park West
Route 10 and Emery Avenue
Randolph, New Jersey 07801

MODEL 550
USER'S MANUAL
Publication 59300-0042-00
September 1978
This manual contains user information on the Model 550 CRT terminal. Its contents are
proprietary and may not be reproduced, in whole or in part, without written authorization
of the PERKIN-ELMER Terminals Division.

TABLE OF CONTENTS
Section 1 Introduction
1.1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.3 Environmental Specifications ..................................................... 1-1
1.4 Physical Specifications ........................................................... 1-1
Section 2 Initial Check and Functional Test
2.1 Unpacking and Visual Inspection ................................................. 2-1
2.2 Environmental Requirements ..................................................... 2-1
2.3 Power Requirements ............................................................. 2-1
2.4 Functional Test Procedures ....................................................... 2-1
Section 3 Interfacing
3.1 Data Communications ............................................................ 3-1
3.2 Auxiliary Output Interface (optional) .............................................. 3-3
Section 4 Operations
4.1 Initial Setup ..................................................................... 4-1
4.2 Data Line Setup .................................................................. 4-1
4.3 Establishing Communications .................................................... 4-2
4.4 Operations ...................................................................... 4-2
4.5 Keyboard Functions .............................................................. 4-3
4.6 ASCII Control Functions .......................... : .............................. 4-5
4.7 Escape Code Sequences ......................................................... 4-8
Section 5 Maintenance
5.1 Cleaning ........................................................................ 5-1
5.2 Operator Checklist ............................................................... 5-1
5.3 Fuse Replacement ............................................................... 5-1
Figures
1-1 The Model 550 CRT . . . .. . . . .. . .. . .. . . .. . .. . . . . . .. . . .. . .. . . .. . .. . . . .. . . . . Frontispiece
3-1 20ma Current Loop Adapter . . . .. . .. . . .. . .. . . . . .. . . .. . . .. . . .. . . . .. . .. . . . . . . .. . . .. . 3-2
3-2 Current Loop Connections ....................................................... 3-3
4-1 Front Panel Switches ............................................................. 4-1
4-2 Transmission Modes ............................................................. 4-2
4-3 Model 550 Keyboard . . . .. . . .. . . .. . .. . . .. . . . . .. . . .. . .. . . .. . . .. . .. . . .. . . . . . . . .. . . . . 4-3
Tables
3-1 EIA Data Interface ............................................................... 3-1
3-2 Current Loop Interface ........................................................... 3-2
3-3 EIA Auxiliary Output Interface .................................................... 3-3
4-1 Keyboard Controls ............................................................... 4-4
4-2 Standard ASCII Code ............................................................ 4-5
4-3 Keyboard Codes ................................................................. 4-5
4-4 Escape Code Sequences ......................................................... 4-8
4-5 Cursor Addressing ............................................................... 4-9
5-1 Trouble Shooting ................................................................ 5-1

BRIGHTNESS
SLIDING PANEL &
ALTERNATE ACTION KEYS
RS232 CONNECTOR PRINTER PORT
TRANSPARENT MODE
ON/OFF
NUMERIC PAD
POWER CORD
MODE SWITCHES
Figure 1-1 Model 550 CRT

Section 1
INTRODUCTION
1.1 GENERAL DESCRIPTION
The PERKIN-ELMER Model 550 terminal is a low-cost, interactive teletypewriter replacement,
one of a family of PERKIN-ELMER CRT computer terminals. See Figure 1-1.
The hardware for the Model 550 is assembled from basic building blocks designed around a
proprietary LSI CRT controller chip.
1.2 GENERAL SPECIFICATIONS
The basicunitoperateson 115V, 60Hzforthedomesticmarketwith 1 OOV /115V/230V, 50/60Hzavail-
able for the international market. Communications are performed in a serial, asynchronous mode
using the EIA RS232C/CCITT V.24 interface or an optional 20ma current loop. Datatransmission
rate, parity selection, stop bit, and half and full duplex transmission modes are switch selectable.
Factory installed options are described under appropriate headings.
1.3 ENVIRONMENTAL SPECIFICATIONS
The terminal operates through an ambient temperature range of 0°C to 40°C with a maximum
relative humidity of 80% (non-condensing). When not in operation, it will withstand temperatures
ranging from -40°C to +65°C with a maximum relative humidity of 95% (non-condensing).
1.4 PHYSICAL SPECIFICATIONS
The Model 550 measures 14 inches high, 15 inches wide, and 19 inches deep: Itweighs 30 pounds
and has an off-white exterior with charcoal grey front. The standard keyboard contains high-
lighted control keys which facilitate high-speed operations.
Screen Format
Screen size
Screen capacity
Number of lines
Characters per line
Phosphor
Displayable characters
Character formation
Number of scans
Refresh rate
12 inches diagonal.
1920 characters.
24.
80.
P4 (white).
128 upper/lower case characters, numbers, punctuation, and
control characters.
5x9 characters in a 7x10 field.
10 per character.
50/60Hz (non-interlaced).
*35.5 x 38.1 x 48.3 cm; 13.6 Kg
1-1

Keyboard
Character code ASCII.
Keyboard layout ASCII, bit pairing.
Repeat key rate 12 cps.
Shadowed Numeric Pad 0-9, decimal point, comma, in standard calculator format.
Clear key To avoid accidental loss of data "Control" must be depressed at the
same time as "Clear."
Switch Format
Eleven baud rates
Stop bits
Transmission
Parity
Refresh rate
Video
Modem control
Current loop power
Transparent Mode
Factory Options
Keyboard
Universal power supply
Current loop cable
Peripheral Interface
Antiglare Screen
110, 200, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, and 9600 baud
One or two.
Full or half duplex.
Space, mark, even or odd.
50/60Hz.
White-on-black and black-on-white (inverse video).
The DTR lead to the modem is disabled when the terminal is in local
mode.
Switch selectable. +12V and -12V are supplied by the Model550 when
the current loop option is used. (see Table 3-2).
Switchable for display of control characters on the screen.
International keyboards are available in French, Swedish, Danish/
Norwegian, German, British, and Spanish character sets.
100V/115V/230V, 50/60 Hz, switch selectable
Switch selectable 20ma current loop for passive, active, or hybrid
connections.
Auxiliary output ("wye" type connection) direct connection to the
communications port, when enabled by the PRINT key.
Reduces reflection and glare.
1-2

Section 2
INITIAL CHECKOUT AND FUNCTIONAL TEST
2.1 UNPACKING AND VISUAL INSPECTION
All Model 550 terminals are thoroughly inspected at the factory for loose or missing hardware,
scratches and dents. After taking the terminal out of its box, inspect for any damage incurred
during shipment. Refer to the shipping papers to verify the presence of options.
If the shipping carton shows external damage and the unit does not perform properly, file a
claim with the shipping firm immediately and notify the PERKIN-ELMER Customer Service
Department. PERKIN-ELMER Technical Support Representatives and Customer Engineers
are available to provide consultation and assistance on request. A list of PERKIN-ELMER Sales
and Service offices is given at the end of this manual.
Retain packing material and container for any future repacking and shipment. Improper
repacking will void the warranty.
2.2 ENVIRONMENTAL REQUIREMENTS
See the detailed environmental requirements in Section 1.3.
The Model 550 terminal operates reliably in a typical office environment. Uncomfortably high
temperature coupled with low humidity may cause high voltage static discharges which can
impair performance. This evaluation should be made when selecting an installation site.
Place the Model 550 on a typewriter stand, low desk, or any other surface normally provided for
office typewriters.
2.3 POWER REQUIREMENTS
Proper power source and grounding are essential to optimum performance. Standard models are
equipped for 115V, ±10%. Wire a utility outlet directly to the main power panel for a "clean"
power source. Ensure that this line is free of other equipment, such as copying machines, calcu-
lators, electric typewriters, etc. These create electrical noise which may be transmitted through
power lines and, under certain conditions, cause a malfunction. The ground wire between the
terminal power connector and the main power panel ground must be uninterrupted.
2.4 FUNCTIONAL TEST PROCEDURES
To test all functions of the Model 550 prior to operations, proceed as follows:
1. Set the power switch ON, allowing 30 seconds for the CRT to warm up. The power switch is
on the right, above the key board.
2. Release the line key so that the terminal is in the local mode. The line key is on the keyboard,
above the alphanumeric keys.
3. Adjust the brightness of the display by adjusting the control dial. It is left, above the keyboard.
4. Set the duplex switch to half duplex operation. The duplex switch is mode switch 8, under the
sliding panel. Refer to page 4-1 for the location of this and other mode switches.
5. Depress each alphanumeric key in upper and lower case. Verify that the display is accurate.
6. Home the cursor by depressing the ESC and then upper case H keys.
7. Depress ESC and CTRL keys at the same time. The screen should fill with a scrolling display
of 95 characters plus the nondisplay character, DEL.
8. To terminate the scrolling display of the self-test, depress DEL and CTRL at the same time.
9. Familiarize yourself with the function keys by reading Section 4, Operations. Using the
Keyboard Control and Keyboard Code tables (Tables 4-1 and 4-3), verify that all keys work
as stated.
2-1

A final test may be performed with the Model 550 on-line in the full duplex mode if the host
processor can be programmed to be in the ECHOPLEX mode. Repeat the above test at the
desired baud rate to ~erify that the data line is operational. (Refer to Section 4 Operations, for
initial setup of the terminal.) ·
2-2

3.1 DATA COMMUNICATIONS
Section 3
INTERFACING
Theterminal transmits ASCII coded data in an asynchronousformat. See Table4-2. Each character
is preceded by a start bit and followed by one or two stop bits. The terminal has an
EAi RS232C interface and (when ordered), an optional 20ma current loop adapter. Those EIA
signals which apply to this class of terminal (asynchronous data communications) are
assigned to pins in accordance with EIA Specification RS232C for interfacing data communi-
cation equipment. Both the standard EIA circuit name and the circuit name used in Europe
(CCITT V.24) are shown in Table 3-1, EIA Data Interface.
Table 3-1. EIA Data Interface
25-Pln Male
Connector EIA RS232C
CCITT
Signal Name
1
AA
101
Chassis Ground
2
BA
103 Transmit Data
3 BB 104 Receive Data
6 cc 107 Data Set Ready
7 AB 102 Logic Ground
8 CF 109 Carrier On
9* --+12V
10* ---12V
19 --Printer Busy
20 CD 108.2 Data Terminal Ready
*Used on terminals with current loop option (switch selectable - See Figure 4-1).
The EIA Data Interface
Not all signals at this interface are required for most applications. Signal descriptions are
arranged from most used to least used.
Pin 1 - AA Chassis Ground, and Pin 7 - AB Logic Ground, should be carried in a cable to a
device such as a modem which is wired according to RS232C. These signals are tied internally.
The "primary channel" data lines, Pin 2 - BA Transmit Data, and Pin 3 - BB Received Data,
are the lines on which data go to and from the terminal.
The signals, Pin 6- CC Data Set Ready, and Pin 8- CF CarrierOn, are notused by theModel550.
When mode switch 9 is OFF, the line key, on the keyboard, controls Data Terminal Ready.
When the terminal is on-line, Data Terminal Ready is high. If the terminal is switched to local
(off-line), Data Terminal Ready is switched low. When Switch 9 is ON, Data Terminal Ready
is held at a constant high.
If an auxiliary output interface is used, then when the printer generates a busy signal on pin 5
of its auxiliary port, the signal is sent to the host on pin 19 of the EIA Data Interface.
3-1

The Current Loop Interface (optional)
The current loop cable converter board forms an integral part of the cable. The board converts
the RS232C signals into 20ma current loop levels. The signals generated by the interface are
listed in Table 3-2.
Table 3-2. Current Loop Interface
Signal 15-Pin Male
Name Connector
Logic ground
15
TDU* 7
Receive(+)
11
Receive (-)
12
Send (+) 9
Send (-)
10
Chassis ground 1
The current loop interface uses optoisolators and can operate at any speed up to 9600 baud,
depending on line length and type.
Two techniques for using the current loop are:
1. The terminal supplies the 20ma current for the loop (active).
2. The user's device supplies the 20ma current for the loop (passive).
Frequently, a hybrid of the two is used, e.g., the user provides the 20ma to the terminal but
expects "contact closure" outputs from the terminal. (Most teletypewriters accept a loop
current and provide "contact closure" outputs.) The adapter box on the optional current loop
cable permits the setting of switches (Passive/Active) on both the send and receive current
loops. See Figure 3-1.
Figure 3-1. 20ma Current Loop Adapter
*Busy signal used by Perkin-Elmer processor systems.
3-2