TM
11-5835-243-34/EE641-AA-MMl-010/E154
MTT/TO
31S3-4-110-1
Control Lines
b . Magnetic Tape Cartridge.
(TTL Compatible). . . . . . . . . . Write strobe, write permit,
(1) Physical Characteristics,
write reset, write enable, low-
Length . . . . . . . . . . . . . . . . . . . . 6.50 in.
speed, high-speed, forward,
Width . . . . . . . . . . . . . . . . . . . . . 5.05 in.
reverse, run, stop, rewind and
Height . . . . . . . . . . . . . . . . . . . . . 0.94 in.; 1.27 in. at hinges
address select (four lines)
Weight . . . . . . . . . . . . . . . . . . . . 1.50 lb
Manual Controls . . . . . . . . . . . . Rewind to BOT, door closed,
Tape Width . . . . . . . . . . . . . . . . . 0.5 in
power on-off, address select 1
Usable Tape Capacity:. . . . . . . . 3M Company tape 890,450 ft.
through 4
Tape Life at Rated Data
Automatic Controls. . . . . . . . . . Stop: on detection of BOT or
Reliability : . . . . . . . . . . . . . . . . 3M Company type 890; 5,000
EOT, magnetic tape cartridge
end-to-end passes
not installed properly, access
BOT and EOT Markers: . . . . . . Two 1-inch long reflective
door open. Record-protected
tape markers placed on back-
magnetic tape cartridge
of-tape (3M Company type
sensing switch.
8807). T h r e e EOT holes
(5) Environmental Data.
punched at each end-of-tape.
Temperature: . . . . . . . . . . . . . . . Operating range 0C (32F) to
(2) Performance Characteristics.
50C ( 122F). Non-operating
Tapespeed: . . . . . . . . . . . . . . . . . 50 inches per second (ips) max.
0
range 4 0 C ( 4 0 F) to
Tape Tension: . . . . . . . . . . . . . . . 2.50 ounces nominal (with
+60C(+140F).
dynamic variations from 2.0
Humidity : . . . . . . . . . . . . . . . . . . Circuit boards and components
to 3.5 ounces). Passive elastic
are conformal coated.
belt maintains tension at all
Shock: . . . . . . . . . . . . . . . . . . . . . operating level is 25 Gs for
times.
11
milliseconds,
half
Dynamic Skew: . . . . . . . . . . . . . At 22.5 ips-- 135 microinches
sinewave.
Data Reliability:. . . . . . . . . . . . . Unrecoverable error rate in
specified environment is 1 in
108 bits at low speed.
File Protect: . . . . . . . . . . . . . . . . Captive, switchable cam
1-8
