FRee 24-hour tech Support: 724-746-5500 blackbox.com 2010. All rights reserved. Black Box Corporation. Fiber Optic Multipoint (FOM) Line Drivers Connect your RS-232, RS-485, or 20-mA Current Loop device to fiber optic cable. 06/03/2010 1 of 3 18076Use the Fiber Optic Multipoint Line Driver in an industrial environment. FeAtu ReS Fiber Optic Multipoint Line Fiber Optic Multipoint Line Fiber Optic Multipoint Line Configure the line driver in network Driver (ME540A-ST) Driver (ME540A-ST) Driver (ME540A-ST) or master/slave mode. Premium Ceramic, Premium Ceramic, Operate in half- or full duplex mode. Multimode 62.5-Micron Multimode 62.5-Micron Fiber Patch Cable (EFN110) Fiber Patch Cable (EFN110), Select from RS-232, RS-485, or 20-mA Current Loop. Premium Ceramic, DB9 Extension Runs at 128 kbps at distances CAT5e Multimode Cable (EDN12H), Bulk Cable 62.5-Micron up to 6000 feet (1828.8 m). (EYN851A) CAT5e Fiber Patch Cable PC Time Clock Bulk Cable (EFN110) ST connectors. Conveyor Belt (Comm Port) (EYN851A), OVERVIEW With the Fiber Optic Multipoint Line Driver, you can use an RS-232, Typical Applications RS-485, or 20-mA Current Loop device in a multidrop half-duplex The line driver is ideal for industrial environments. Configure two environment with fiber optics as the transmission media. units as masters to run them in a point-to-point configuration. Or, The line driver has a single RS-232 DB9 female connector. TX and link three units in a multipoint configuration (see the diagram above). RX are parallel with a 20-mA Current Loop and an RS-485 interface sharing a common terminal block with a switch to select the shared interface. This enables you to connect an RS-232, an RS-485, or a Current Loop device to a fiber optic link. In addition, there are two fiber optic receivers and transmitters with ST connectors supporting standard fiber cable through 200 microns. The line driver runs at 128 kbps at distances up to 6000 feet (1828.8 m). You can configure the device in one of two operating modes: network mode or master/slave mode. technically Speaking In network mode, data sent to the transmitter of the RS-232 DB9, 20-mA Current Loop, or RS-485 terminal block is passed out The Fiber Optic Multipoint Line Driver is factory- to both optical transmitters. Data received from either optical receiver configured as follows. You can change these settings is passed through to the opposite optical ports transmitter, to the to suit your application. receiver of the RS-232 DB9, 20-mA Current Loop, or RS-485 port. XW2 can be set for RS-232, RS-485, or 20-mA In master/slave mode, one unit is configured as a master, and Current Loop operation. The factory default is RS-232. all others as slaves. When the master sends data to the transmitter S1 positions 1 and 2 can be set to determine the of the RS-232 DB9, 20-mA Current Loop, or RS-485 terminal block, mode the unit will operate in. Choose from Network it is passed through to the master B optical port. From there, it is mode or Master/Slave mode. Master is the default. daisychained to the next slaves A optical RX. As each slave receives S1 positions 36 can be set for fail-safe/biased line. the data, it is passed through to the DB9 RX and the receive terminal S1 positions 78 can be set for RS-485 termination block. or no termination. In addition, the data is retransmitted out that slaves B optical TX W2 sets the delay of CTS assertion with the raising to the next slave. of DTR or RTS. The default setting is 0, no delay. The line driver can also run in full-duplex mode when both units are configured as masters. 06/03/2010 724-746-5500 blackbox.com 2 of 3 18076 BLACK BOX