CMX615 查看數據表（PDF） - MX-COM Inc

零件编号

产品描述 (功能)

比赛名单

CMX615

Digital Line to POTS Interface

MX-COM Inc  

Digital Line to POTS Interface

CMX615

CCITT ‘R1’ Signalling Tones

(Hz)

700+900

700+1100

900+1100

700+1300

900+1300

1100+1300

700+1500

900+1500

1100+1500

1300+1500

700+1700

900+1700

1100+1700

1300+1700

1500+1700

Field 2

(Hex)

$12

$13

$23

$14

$24

$34

$15

$25

$35

$45

$16

$26

$36

$46

$56

CCITT ‘R2’ Signalling Tones

Forward mode

(Hz)

Off

1380+1500

1380+1620

1500+1620

1380+1740

1500+1740

1620+1740

1380+1860

1500+1860

1620+1860

1740+1860

1380+1980

1500+1980

1620+1980

1740+1980

1860+1980

Field 3

(Hex)

$00

$89

$8A

$9A

$8B

$9B

$AB

$8C

$9C

$AC

$BC

$8D

$9D

$AD

$BD

$CD

Backward mode

(Hz)

Off

1140+1020

1140+900

1020+900

1140+780

1020+780

900+780

1140+660

1020+660

900+660

780+660

1140+540

1020+540

900+540

780+540

660+540

Field 3

(Hex)

$00

$65

$64

$54

$63

$53

$43

$62

$52

$42

$32

$61

$51

$41

$31

$21

1.6.2

‘C-BUS Timing

The relationship between bytes loaded onto the C-BUS and the transmission of FSK bytes is shown

diagrammatically in Figures 7a, 7b and 7c.

There are many ways in which the C-BUS can be used to program a device and three suggestions

(one for asynchronous FSK - Figure 7a - and two for synchronous FSK -Figures 7b and 7c) are shown

here, together with typical timings. Please note that the C-BUS timing is not shown to the same scale

as the FSK output (it has been magnified by at least 20 times to make it visible on the same scale).

© 1999 Consumer Microcircuits Limited

17

D/615/4

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