7-5
LS 3070 Product Reference Guide: Programming
Four Options for Dual Port RS-232:
Dual Port RS-232: Transmit and Receive from Port 1.
Dual Port RS-232: Transmit to Ports 1 and 2 — Receive from Port 1.
Dual Port RS-232: Transmit and Receive from Port 2.
Dual Port RS-232: Transmit to Ports 1 and 2 — Receive from Port 2.