Teletype Model 42 ASR - 4220 AAB + 4250 AAA

• Modified and used by USN for training and MARS and other uses? Please send me email with any info on its use.
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• I am looking for Teletype manuals 517M, 538M, & 572M - please send me email if you can help
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I am trying to figure out how to set Options on my machine.  Following manual 516M, I can set and review the "User Programmable Options". However I can't figure out how to list and edit the "Installer Programmable Options" like baud rate, answer-back, tape control, etc.  HELP!		Options listing taped onto a friend's M42 by a previous owner	Power-On prompt (410231 is the controller board model)
			Model 4220 AAB Teleprinter
		50K122/AAG Keyboard
	Power Supply 430780	Send-Receive 20/60 ma Loop	==
US Navy Modifications? Switch labeled "Transmit"-"Receive"-"Transmit Simulator" External Cable w/ Molex Connector - 60ma loop plus switch/lamp connections
Switch and Indicator Lamp
Interface Circuit Card TAU3 - 410382 Dual EIA plus 20/60ma Neutral Loop  - Description & Schematic thanks to Paul Cembura
Controller Circuit Card - 410231 5 Level SCCAT ("Single Card Controller") - component layout Z-80 CPU + two 64K EPROMs + 256x8 SRAM (w/battery back-up) + 1Kx8 SRAM + three USARTs
			--
			==
Logic Card 410791 Keyboard Interface & Printer Controller
Paper Tape Unit - 4250 AAA - video
		Optical tape reader	Model 4250 AAA paper tape unit
		Mike Hatch's paper tape unit showing the chad box in place	Mike's chad box, chad chute, and "wing cover"
removed from cover	controller circuit board removed	controller circuit board removed	power supply
punch & reader controller	punch	reader	self-test mode - ltrs-blank-r-y

1987 Naval Sea Systems Command Safety Tag

COMNAVSURFRESFORINST 3502.lA
31 OCT 1990

STS 101-0001 - COMMUNICATIONS REFRESHER TRAINING
Description:-  This course provides refresher training in various areas such
as Crypto Material System (CMS), ACP 126 and modified ACP
126 message formats, Task Group Orestes (TGO) circuits, and
shipboard simulator teleprinter (MOD 42) usage.

LESSON TOPIC TITLE
1.1 Communications Organizations
1.2 Introduction to Security
1.3 Accountability and Control of Classified Material
1.4 Accountability and Control of Communications Security Material System (CMS)
2.1 Outgoing Message Processing
2.2 Broadcast Circuit Operating Procedures
2.3 Incoming Message Processing
2.4 Message Reproduction/Distribution (R/D) and Filing
2.5 Genadmin Message Text Format
3.1 Model 42 Teleprinter
3.2 Operating Signals (OPSIGS)
3.3 Basic Radioteletype Circuit Operating Procedures
3.4 Basic Radiotelephone (R/T) Circuit Operating Procedures
4.1 DD-173 OCR Message Format
4.2 ACP 126 Message Format
4.3 Modified ACP 126 Message Format
4.4 JANAP 128 Message Format

Miscellaneous other Model 42 and Model 43 info:

• Interface options
  • TTL - No interface card, just a ribbon cable
  • TDU Card - 153A1 Terminal Data Unit - modem with RJ-11 jacks for line and phone
  • TAU Card - 410751 Terminal Auxiliary Unit - Line ( EIA) 
  • TAU1 Card - 410755 Terminal Auxiliary Unit - Line (EIA or current loop)
  • TAU2 Card - 410754 Terminal Auxiliary Unit - Line (EIA or current loop) + Aux (EIA or current loop)
  • TAU3 Card - 410382 Terminal Auxiliary Unit - Line (EIA or current loop) + Aux (EIA)