On-hook & off-hook

Note: Block A shows the switches S1 and S2 that are used for setting and selecting.

Block B illustrates a timer mode when Off-hook; timer resets and starts to count the conversation time.

In Block C, the dialing data is received and displayed on the LCD from left to right after Off-hook. When the en-

try interval is over 10 seconds, it resets the timer and starts to count.

TIMER key function

The TIMER key is used to start/stop the timer (toggle). In real time mode, it can perform a stopwatch function.

In the conversation timer mode, it can reset or hold the timer.

HT1611C

Rev. 1.10

6

August 17, 2001

Block A

Block B

Block C

Receive Digit(s)

78

7

780

On-hook

Receive Data

No Data

Entry >10 secs

Timer Mode

On-hook

00 01

00 02

11

26

10 25 37

S2

S2

S2

S1

S1

Hour

Minute

Real Time

Display Timer

5 sec duration

> 5 secs

< 5 secs and

Off-hook

Off-hook

00 00

Trig. TIMER

(within 5 secs)

Timer reset

and count

00 00

01 24

Trig.

TIMER

01 24

Timer hold

No action for

over 5 secs

Timer reset

and count

00 00

00 12

LCD display

real time

10 11 00

00 12 36

Return to real

time clock

00 12

Timer hold

Trig. TIMER

Trig. TIMER

(HK=0)

Off-hook

Dialing out

Timer reset

and count

00 00

01 24

Trig.

TIMER

Timer reset

and count

00 00

00 12

LCD display

real time

10 11 00

1234567

Dialing finished

(after 10 secs)

01 24

Timer hold

00 24 36

Return to real

time clock

On-hook

over 5 secs

Trig. TIMER

Timer reset

and count

00 00

01 24

Show dialing

numbers