Help Transmitting RS485 Over Fiber!

Post Reply

Thread Tools

03-10-2008, 4:41 AM

alarm guy iti alarm guy iti is offline

New Member

Join Date: Oct 2008

Experience Points:
2,135, Level: 10

Activity: 0%

Thanks: Gave 0, Got 0

Posts: 1

Help Transmitting RS485 Over Fiber!

Transmitting rs485 (2-wire) over multi-mode fiber then back to copper twisted pair. Controling ptz camera. Qustion is do i need a termination point for the dvr, "Speco TN Series in this case" to control PTZ functions i get nothing @ the dvr. Works great when connect direct bypass fiber. i read where one may need 120ohm termination resistor @ Transmitter for dvr to see resistance. Any help??? By the way i am using IFS 1900 series Tranceiver using to fibers.

Quote

Post Reply

Thread information and display options

Thread Tools
Show Printable Version Email this Page

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts	BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are Off Refbacks are Off
Forum Rules