ZETRON 2000 Series Specifications download pdf (Page 362)

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Appendix A: TAP Protocol Summary

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Definitions

Please note that upper/lower case is important for printable characters, for example, for

<ESC>PG1 the “P” and “G” must be in upper case.

Protocol

Initial Handshake Sequence

1. AED desires to call the M2x00. It initiates the paging sequence, calling the Model

2x00's alpha access #.

2. AED may or may not bring up its modem first (it may wait to see the modem from

the Model 2x00).

3. M2x00 answers and brings up its modem.

4. AED then brings up modem if not already up.

5. The modems at both ends establish the communications link.

Term Meaning

AED Alpha Entry Device, this would be any customized terminal or PC configured

to send alpha-numeric paging requests to the paging terminal

M2x00 A Zetron Model 2100 or 2200 paging terminal

msg optional TAP transaction messages, enabled/disabled per trunk line, default is

active, the ending <LF> is part of the message

Character Meaning

-ASCII

decimal

Value-

hex

Control

Character

<CR> Carriage Return 13 0D ^M

<ESC> Escape 27 17 ^[

<ACK> Acknowledge 6 6 ^F

<NAK> Negative acknowledge 21 15 ^U

<EOT> End of transmission 4 4 ^D

<STX> Start of text 2 2 ^B

<ETX> End of text 3 3 ^C

<LF> Line Feed 10 0A ^J

<RS> Record Separator 30 1E ^^

<US> Unit Separator 31 1F ^_

1 2 ... 357 358 359 360 361 362 363 364 365 366 367 ... 375 376

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ZETRON 2000 Series Specifications Page 362

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