Black Box MD3317, ME840A-M, ME840A-S, MD3318 manual Short-Haul Modem-FSK RS-485 Modules

AUGUST 1997

ME840A-M

ME840A-S

MD3317

MD3318

Short-Haul Modem-FSK

RS-485 Modules

R

R

-FSK SHM

LPBK

TxD

RxD

CD

PWR

CUSTOMER Order toll-freein the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX

SUPPORT FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500or fax 724-746-0746

INFORMATION Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com