AS2525B datasheet(6/28 Pages) AMSCO

6 / 28 page

Datasheet AS2525

austriamicrosystems

Revision 2.1

Page 5 of 27

Key Definitions and Procedures

Table 1: Key definitions

Key

Condition

Function

Remark

[0] - [9],

[#], [

∗]

Off-hook

Digits

Function depending on mode

[

∗]

LD mode

Temporary MF select

Providing mixed mode dialing (default LD selected)

Speech mode

Enter program state

To enter the program state

[PG]

Program mode

Exit program state

To terminate/exit program state

Speech mode

Enter mute state

To enter mute state

Mute state

Exit mute state

To terminate/exit mute state

[MT]

Program mode

Enter blank

To enter blank digit during programming

Redial/Pause

Allows re-signaling of the last dialed number and

insertion of pauses

[R/P]

Program state

Pause

Each key pressure inserts a pause

[FL]

Flash function

Invokes a timed loop break

[V+]

Speech mode

Volume control

To increase the receive gain

[V-]

Speech mode

Volume control

To increase or decrease the receive gain

[MR]

Memory redial key

To access memory by key codes

[M1] - [M8]

Memory dial

Access keys to memories 1 to 8 and 9 to 16

[SH]

Second function (shift)

To access second function of keys

Table 2: Digits

Digit Key

DTMF Mode

(fLOW + fHIGH)

Pulse Mode

Programming Mode

([PG] + Digit)

Memory Location

([MR] + Digit)

[0]

941 + 1336 Hz

10 pulses

Memory 17

[1]

697 + 1209 Hz

1 pulse

To enter PIN protected programming

Memory 18

[2]

697 + 1336 Hz

2 pulses

Select flash duration

Memory 19

[3]

697 + 1477 Hz

3 pulses

Select dialing mode

Memory 20

[4]

770 + 1209 Hz

4 pulses

Select pause duration

Memory 21

[5]

770 + 1336 Hz

5 pulses

Key lock toggle

Memory 22

[6]

770 + 1477 Hz

6 pulses

Ringer volume

Memory 23

[7]

852 + 1209 Hz

7 pulses

Ringer melody

Memory 24

[8]

852 + 1336 Hz

8 pulses

LCD contrast

Memory 25

[9]

852 + 1477 Hz

9 pulses

Ringer on/off

Memory 26

[

∗]

941 + 1209 Hz

Temporary MF select

[#]

941 + 1477 Hz

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