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Author Topic: DIY DTS TC Cables? Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 04-22-2002 09:37 PM                    Anyone ever whip up your own timecode reader cables for DTS? What is this in the manual about Serial Data To/From Remote Terminal? Is that used? Otherwise it's just +5V, GND, TC, and the LED drive line. If you could live without the latter (just watch the box) it looks like plain old Belden audio cable with 2 wires + shield & ground would do it.  |  IP: Logged Josh Jones Redhat Posts: 1207 From: Plano, TX Registered: Apr 2000 posted 04-23-2002 03:13 PM                        Are those serial connections on the same pins used by a computer? perhaps a breakout cable was interfaced to a computer to talk to the DTS unit while at the projector. Just a thought. Josh  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-23-2002 04:57 PM                     More often than not, I make my own DTS and now Dolby digital cables. For the DTS cables, I've always used 9-cond shield. It is a cable we stock so I have never bothered to try and "beat the system." The serial data to/from is listed on my drawing as "not necessary for the reader to operate" so I suppose you are right. Steve ------------------ "Old projectionists never die, they just changeover!"  |  IP: Logged Karen Hultgren Master Film Handler Posts: 492 From: Agoura Hills, CA, USA Registered: Mar 2000 posted 04-23-2002 06:10 PM                        The DTS timecode cable is very simple. For a one-projector system, you really only need to use pins 1 (TC out), 9 (LED drive signal in from player), 5 (+5DC power from player), and a ground (pins 6, 7, ot 8). The cable must be fully shielded and the connector shells must be common to chassis (earth) ground. Karen at DTS khultgren@dtsonline.com  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 04-23-2002 06:15 PM                        Josh -- FYI, the pinouts for a standard PC serial cable with a DB9 connector are: pin 1 - DCD pin 2 - RCV pin 3 - XMT pin 4 - DTR pin 5 - GND pin 6 - DSR pin 7 - RTS pin 8 - CTS pin 9 - RNG (can you tell that I've been making a lot of serial console cables lately? don't get me started talking about Annex terminal servers...)  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-23-2002 09:01 PM                     In a pinch, even pin 9 may be omitted. It's purpose is to light the green LED on the reader. Again, I normally just hook up all 9...then again I often have 2-projector screens Thus I need pin-2 as well. Steve ------------------ "Old projectionists never die, they just changeover!"  |  IP: Logged Karen Hultgren Master Film Handler Posts: 492 From: Agoura Hills, CA, USA Registered: Mar 2000 posted 04-24-2002 03:54 PM                        Personally, I would not leave off pin 9 = you're asking for trouble. As Steve metioned, "in a pinch" or temporarily is okay. Karen at DTS  |  IP: Logged

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