Topic LPTLINK from HARDW FAQ base
Пожалуйста, обратите внимание на дату представленного здесь сообщения! Информация об адресах, телефонах, организациях и людях наверняка устарела и потеряла практическую ценность, обретя, однако, ценность историческую, заради которой до сих пор и хранится...
— RU.HACKER (2:5020/140.13) ——————————————————————————————————————— RU.HACKER — From : Kostia Sinitchenko 2:5030/110 Tue 28 Sep 93 15:20 Subj : Re: LPT Link ———————————————————————————————————————————————————————————————————————————————— Hi Eugeny! Распайка кабеля LPT-LPT для Lantastic. 2 - 15 16 - 16 3 - 13 17 - 17 4 - 12 18 - 18 5 - 10 19 - 19 6 - 11 20 - 20 10 - 5 21 - 21 11 - 6 22 - 22 12 - 4 23 - 23 13 - 3 24 - 24 15 - 2 25 - 25 { Проверка парралельного кабеля для Lantastic. } uses crt; var paddr: word; data,inp: byte; a:char; function bin(b: byte): string; var msk: byte; s: string; begin msk:=128; s:=''; repeat if (b and msk) = 0 then s:=s+' 0' else s:=s+' 1'; msk:=msk div 2 until msk = 0; bin:=s end; begin paddr:=memw[$40:8]; if paddr = 0 then begin writeln('No parallel port found!'); halt(1) end; port[paddr+2]:=$EC; writeln; data:=$55; while not keypressed do begin port[paddr]:=data; inp:=port[paddr+1]; inp:=inp shr 3; write(#13+'DATA: ',bin(data),' CONTROL: ',bin(inp)); data:=not data; delay(300) end; a:=readkey; if a = #0 then a:=readkey; port[paddr]:=0; end. — SU.FILEECHO (2:5020/140.13) ——————————————————————————————————— SU.FILEECHO — From : Vadim Popkov 2:465/18 Fri 08 Oct 93 16:50 Subj : .ровод для Norton 4.0 ———————————————————————————————————————————————————————————————————————————————— Привет Anton! AP> Видал где-то описание провода для Link ортона через LPT. Может у кого AP> есть ? 2 ------- 15 3 ------- 13 4 ------- 12 5 ------- 10 6 ------- 11 15 ------- 2 13 ------- 3 12 ------- 4 10 ------- 5 11 ------- 6 25 ------- 25 * Forwarded by Serg Agarkoff (2:5040/22.3) * From : Konstantin Pyryaev, 2:5040/20 (Суббота, 16 Октября 1993 года 11:40) * To : Serg Agarkoff * Subj : NC4' lpts ============================================================================= выдеpнуто из доки по fastlinx'у -------------------- Choosing between parallel or serial ------------------- Speed The main difference between parallel and serial mode is speed. Parallel runs 25% to 4 times faster than serial mode, depending on the speed of the computer. You will see less improvement if you are running on standard PC-type machines than if you are running on faster 80286 or 80386 based machines. Cable length If you are planning to do transfers over cables greater than 15 feet long, you may want to use serial transfer mode. Parallel transfers under these conditions sometimes get more transmission errors, and sometimes even fail to communicate entirely. 7-wire serial cables have a similar problem with length. You may have to transfer in 3-wire mode if the 7-wire cable is unshielded or excessively long. There are specially shielded cables available in lengths up to 100 feet that will work at full speed for both the parallel and the 7-wire serial communications. Contact Rupp Corporation for details. Port usage In choosing between serial and parallel, you should consider what ports are most readily available on the machines you will be using. For instance, if you only have one parallel port and do a lot of printing with it, you may want to choose serial transfer. On the other hand, if you only have one serial port and you have a mouse hooked up to it, using the parallel port for data transfer might be easier. Additional serial or parallel cables may be purchased as a separate item from Rupp Corporation for $39.95. You may also choose to have your own cables made using the specifications below. -------------------------- Cable Specifications ---------------------------- Following is a description of the pin connections for a FastLynx 7-wire serial cable. The cable is a 4-headed cable with a 9-pin and 25-pin female connector on both ends. The cable is wired as follows: 9 pin 25 pin 25 pin 9 pin ----- ------ ------ ----- pin 5 pin 7 <----> pin 7 pin 5 (Ground - Ground) pin 3 pin 2 <----> pin 3 pin 2 (Transmit - Receive) pin 7 pin 4 <----> pin 5 pin 8 (RTS - CTS) pin 6 pin 6 <----> pin 20 pin 4 (DSR - DTR) pin 2 pin 3 <----> pin 2 pin 3 (Receive - Transmit) pin 8 pin 5 <----> pin 4 pin 7 (CTS - RTS) pin 4 pin 20 <----> pin 6 pin 6 (DTR - DSR) The ground wire is connected to the same pin on both ends. The last three wires are a reverse of the prior three. Following is a description of the pin connections for a FastLynx parallel cable. The cable has a male DB25 connector at both ends. 25 pin 25 pin ------ ------ pin 2 <----> pin 15 pin 3 <----> pin 13 pin 4 <----> pin 12 pin 5 <----> pin 10 pin 6 <----> pin 11 pin 15 <----> pin 2 pin 13 <----> pin 3 pin 12 <----> pin 4 pin 10 <----> pin 5 pin 11 <----> pin 6 pin 25 <----> pin 25 The second set of 5 wires is the reverse of the first set.
Return to the main HARDW FAQ page