User manual

9 AIMB-767 User Manual
Chapter 1 General Information
1.8.5 COM3 RS-232/422/485 mode selector (JSETCOM3)
Users can use JSETCOM3 to select RS-232/422/485 modes for COM3. The default
setting is RS-232.
1.9 System Memory
AIMB-767 has two 240-pin memory sockets for non-ECC DDR3 800/1066 MHz
memory modules with maximum capacity of 4 GB (Maximum 2 GB for each DIMM).
Please note that AIMB-767 does NOT support registered DIMMs.
1.10 Memory Installation Procedures
To install DIMMs, first make sure the two handles of the DIMM socket are in the
“open” position. i.e. The handles lean outward. Slowly slide the DIMM module along
the plastic guides on both ends of the socket, and then press the DIMM module right
down into the socket, until you hear a click. This is when the two handles have auto-
matically locked the memory module into the correct position of the DIMM socket. To
remove the memory module, just push both handles outward, and the memory mod-
ule will be ejected by the mechanism in the socket.
Table 1.5: COM3 RS-232/422/485 mode selector (JSETCOM3)
Function Jumper Setting
*RS232 (5-6) + (7-9) + (8-10) + (13-15) + (14-16) closed
RS422 (3-4) + (9-11) + (10-12) + (15-17) + (16-18) closed
RS-485 (1-2) + (9-11) + (10-12) + (15-17) + (16-18) closed
* Default
RS232 RS422 RS485