drues@iastate.edu (Michael E Drues) (05/03/91)
Thanks to everyone who responded to my post about an A1000 keyboard extension cord. Basically, you can just use a telephone handset cord (phone-to-handset NOT wall-to-phone). I now have a 25-foot keyboard cable. Here are some of the responses I received. Thanks again, mike Date: Wed, 1 May 91 23:58:43 -0400 From: tnc!m0154@uunet.uu.net The A1000 keyboard cable is (mechanically and electrically speaking) a telephone HANDSET cable. Regular phone LINE cables will not work, but HANDSET cables will (you can get them from Radio Shack, or many hardware stores). The line drivers are spec'd for about 6 feet of cable, but cables up to 15 feet long have been used with varying degrees of success. From: tnc!m0154@uunet.uu.net Date: Thu May 2 08:32:47 1991 I don't think you are in danger of damaging your 1000 with a 25ft keyboard cable. You may be in danger of generating or being very susceptable to EMI (electromagnetic interference). If you suddenly get lots of lost or incorrect keystrokes, or sudden random reboots, suspect the cable. Date: Wed, 1 May 91 17:53:16 mdt From: Dave K. Martin <davem@hp-lsd.cos.hp.com> I've been using a regular telephone handset cord (25') long on my A-1000 for many months now, works just fine. The A-1000 is designed to use the 'rolled' pairs in a telephone cable. You do have to be careful to get a HANDSET cord and not a LINE cord as the modular connectors are slightly different sizes. I also use one of Radio Shack's $10 joystick extension cords on my mouse, also works just fine. Date: Wed, 1 May 91 13:35:32 EDT From: vesty@inmet.inmet.com (Matt Vesty) I've used a handset cable for extension. The trick is to match impedences of the cables. By luck, one of the cables I had did match the impedences and works great. Best bet: try the shorter lengths (not the longer 25 foot lengths available.) Date: Tue, 30 Apr 1991 10:39 CST From: WILSON@sask.usask.ca The *only* trick is to get a cord intended to connect handset-to-phone, not phone-to-wall-jack. I'm typing this on an A-1000 with exactly such an ex- tension, purchased at a local Radio Shack (ooo) store. -- Michael Drues Dept. of Biomedical Engineering Internet:drues@iastate.edu 1146 Veterinary Medicine BITNET:v2.med@isumvs.bitnet Iowa State University Office:(515)294-6520(or 4-1771) Home:(515)233-5652 Ames, Iowa 50011