TCi模块介绍TheTCimoldpieceintroduction中英文资料.doc

1 The TC35i mold piece introduction Currently, domestic already beginning usage of the GSM mold piece have a lot, and these of function, method of using difference not big.What this design adoption is a Siemens TC35 the TC35i of the series.On this kind of wireless mold piece function and TC35 and permit, design tightly packed, consumedly contracted the physical volume of customers product.The TC35i and GSM2/2 and permit,dual-band(GSM900/GSM1800), RS232 the data connect, should mold piece and radio frequency electric circuit and Ji take and integral whole, provide toward the customer standard of AT order connect, is data, speech, short news and fax provide fast, credibility, safety of deliver, convenience customer of application development and design. 2 Usely AT introduction The follow is uselly the At. 3 The PDU code rule Send out short news in common use Text and PDU(Protocol Data Unit, agreement data unit) mode currently.The usage Text mode receive and dispatch a message code simple, realization get up very easy, but the biggest weakness be to cant receive and dispatch Chinese message;But PDU mode not only support Chinese message, also the ability send out English message.The PDU mode receive and dispatch a message can the usage be 3 kinds of to code:7-bit, 8-bit and UCS2 code.7-the bit code to used for send out common of ASCII character list, 8-bit code Be usually used for sending out data news, UCS2 code used for sending out Unicode character list.General PDUs code is constitute by ABCDEFGHIJKLM 13. A:The address length of the message center, 216 enter to make number(one word stanza) B:The number type of the message center, 216 enter to make number. C:Message center number, B+C length will from the data decision in the A. D:Document head word stanza, 216 enter to make number. E:Information type, 216 enter to make number. F:Drive call number length, 216 enter to make number. G:Drive call number type, 216 enter to make number, take value together B. H:Dr