Micr Sorter/Reader; Hi-Data Tape Group, Model 381 - RCA 301 Programmer's Reference Manual

Inquiries and replies are typed on single or multiple sheet stock up to 15 inches wide, with a maximum of 135
characters to the line, ten characters per inch. The input is a manual keyboard operation, the output printing rate
is up to 10 characters per second. The following pica type characters may be printed:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
0123456789
# < & > ( ) — : / , % & E B ; E I $ " - • E D E F ' .
Note: An ED may be typed for input to the computer; on output, its code effects the carriage return of the
typewriter, but is not printed. Each of the following codes will be printed as an underline:
(17)s> (37) , (57)
s
When operated as an input device, information is checked at the control module for correct parity. When
operated as an output device, an echo check for correct parity is performed between the typewriter and control
module. Correct transmission and proper message size may be checked by program.

MICR SORTER/READER

The MICR Sorter/Reader is operated under control of the stored program. The stored program controls the
sorting of magnetically encoded documents into 13 pockets at the same time data read from the document is verified
and accumulated within High Speed Memory.
The Sorter/Reader reads 6-inch documents at a speed of up to 1,560 per minute.
A separate Reference Manual (93-16-001) is available for programming this equipment.

HI-DATA TAPE GROUP, MODEL 381

The Hi-Data Tape Group, Model 381, is composed of a cluster of six, four, or three tape stations. Each tape
station is used for reading and writing information on l/
instructions. Two 8 inch tape reels are mounted on each station; one a supply reel, and the other a take-up reel.
Each reel accommodates 1,230 feet of magnetic tape, providing a minimum of 1,200 feet of usable tape. Tape unit
design facilitates the manual interchange of reels.
Written tapes may be interchanged between individual tape stations or between units with complete compatibility.
Each tape station can be instructed to read in either the forward or reverse direction, or to write in the forward
direction. Rewinding is at the rate of 90 inches per second, permitting a full reel to be rewound in less than 3
minutes completely independent of computing once initiated.
Each tape station reads or writes at the rate of 10,000 characters per second. It accomplishes this by writing
333 characters to the inch while moving the tape at a speed of 30 inches per second. Inter-block gaps are approxi­
mately 0.34 inch in length. An automatic write lockout feature is also provided to protect master reels.
Each of the 6 tape stations within a cluster is individually addressable. Up-to-speed time is 9.8 milliseconds
and write stop delay is 3.9 milliseconds. Within a given cluster, if the tape station addressed is different from the
previously selected tape station, tape switching time is required. Ten milliseconds are needed unless switching from
a write to read condition which requires 22.4 milliseconds. The Tape Stations are designed to facilitate the manual
changing of tape reels within one minute.
Two Hi-Data Tape Groups, Model 381, can be included in a system. When the Computer is equipped with the
Simultaneous Mode Control the two Tape Groups can be operated concurrently.
An automatic accuracy control prevents the tape from running off the feed reel. A write lockout prevents
writing of information except on specifically designated reels of magnetic tape. Parity is checked on the information
delivered to the write-head and on the tape station address received from the computer. Parity is also checked on
information read.
*
, (77),.
s
inch wide magnetic tape in response to programmed
2
II-5