Point-to-Point Connections
The BMEAHO0412 eX80 HART analog output module supports point-to-point 4-20 mA wiring connections to field instruments, including actuators and transmitters. You can make the connection to the input module using a 20-pin terminal block (BMX FTB 20•0), a pre-assembled cord set (BMX FTW •01S), or TELEFAST accessories.
The output module provides 4-20 mA current loop power.
The BMEAHO0412 eX80 HART analog output module present the following 20-pin design, to which you can connect a terminal block, a pre-assembled cord set, or TELEFAST cable:
BMEAHO0412 with 2-Wire or 4-Wire Transmitter
This example illustrates how to connect the output module to a either a 2-wire or a 4-wire transmitter. Field power is provided to the transmitter only in the 4-wire design:
1
2-wire or 4-wire transmitter
2
4-20 mA current loop, with arrows indicating direction of current flow
3
Field power supply (for 4-wire design only)
4
Protective ground
5
Secondary HART master (hand-held) 
