RS‑232 is easy to implement and has been standardized and accepted for years. Due to the nature of RS‑232, the signals are susceptible to noise and grounding problems. These problems set a limit to cable lengths. Quintech recommends that when using RS‑232, the cable length be limited to 20 meters or approximately 60 feet. RS‑232 employs point-topoint communications, so only two devices will typically communicate with each other over the RS‑232 standard.