Communication Bipolar Current Loop T R A N S M I T R E C E I V E S H I E L D Customer Device BW100 TB1 LOWER 25 24 23 22 SHIELD 21 TX1 22 TX2 23 Installation RX1 24 25 RX2 Connect shield at one device only, e.g. BW100 TB1 - 21 Maximum loop length 3000 m (10,000 ft.) Page 14 Milltronics BW100 - INSTRUCTION MANUAL 7ML19985DJ01