GaneData I-DEM 16 Panduan Pengguna dan Manual - Halaman 10

Jelajahi secara online atau unduh pdf Panduan Pengguna dan Manual untuk Modem GaneData I-DEM 16. GaneData I-DEM 16 14 halaman. Usb caller id device

Caller ID Structure:

Within the FSK data types, there are two types of message structures. The one used

in Europe (including the UK) and most of the US is known as the Multiple Data

Message Format (MDMF) and is described below. The other message structure is

known as the Single Data Message Format (SDMF). It is only used in some parts of

the US. The MDMF Caller ID message typically consists of the following:

Message type (Always

Sent)

Message length

Parameter type (At

Least 1 Sent)

Parameter length

Parameter

Parameter type

Parameter length

Parameter

Check Sum

• 1 Byte

• 1 byte (all the bytes to follow, except the Checksum)

• 1 Byte

• 1 Byte (=X)

• X Bytes

• 1 byte

(= y)

• y bytes (actual displayable information)

• 1 byte (used for checking for any errors)