Title: Hardware Installation Guide.pdf
Up to 4 Multiplexers1Star Multiplexer2 3 4 5 6 7 8 9Single Reader Interface ModuleDual Reader Interface Module0 1 2 3 4 5 6 7 8 9 * #0 1 2 3 4 5 6 7 8 9 * #0 1 2 3 4 5 6 7 8 9 * #RS-485 Devices (maximum: 8 per port)revision 6 — 431LNL-8000 Star Multiplexer89.2The Star Multiplexer BoardThe Star Multiplexer board contains the following components: one (1) power input, one (1) host communication RS-232/RS-485 input, eight (8) RS-485 (2-wire) Star Legs or four (4) RS-485 (4-wire), one (1) communication speed DIP Switch four-position selector and seventeen (17) jumpers.Star Multiplexer BoardJP2P O R T 1TR + TXD TR - RXDGNDT B26 J1 J2 3 25 8 42 3 25 8 4JP7JP5JP1 1JP1 2JP1 43 B T4 B TTR+TR-GNDTR+TR-GND2 T R O P3 T R O PJP45 B TTR+) 1 5 (0 0 . 22 1 UJP36 B TTR-GNDTR+4 T R O P) 7 2 1 ( 0 0 . 59 UJP1 0JP87 B TTR-GNDTR+5 T R O P+ D C NCJP9TR-GND6 T R O P) 1 5 ( 0 0 . 2GNDT B14