IEI Integration NANO-HM650 - Manual (Page 46)

NANO-HM650 EP IC S BC
P a g e 31
This connector provides RS-422 or RS-485 communications.
Figure 3-20: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 RXD485# 2 RXD485+
3 TXD485+ 4 TXD485#
Table 3-17: Serial Port Connector Pinouts
3.2.20 S MBu s Co n n e c to r
CN La b e l: SMBUS_1
CN Typ e : 4-pin wafer
CN Lo c a tio n : See Figure 3-21
CN P in o u ts : See Table 3-18
The SMBus (System Management Bus) connector provides low-speed system
management communications.