User's Manual

APPLICANT: MOTOROLA, INC. FCC ID: IHDT6AC1

Exhibit 8

User connector

28 pin DIN

EXT_TXD

EXT_DTR

EXT_RTS

EXT_RXD

EXT_DCD

EXT_CTS

EXT_DSR

EXT_RI

TXD

DTR

RTS

RXD

DCD

CTS

DSR

D15

processor

There are two modes to use the Data port:

- SoftGSM mode. This mode is for computer aplication in witch

an application SW “SoftGSM” is use. This alowed the D15 to

work with V42.bis (data compression), transfer fax and

SMS.

- RS232 full flow control. This is the defaul setting for the

D15. In this mode we can transfer data and SMS using a full

flow control (HW flow control), Xon/Xoff or non flow

control.

There is now FAX capability in this mode.