ECS ecs-rs485m-m free download

File name ecs-rs485m-m.PDF

5 4 3 2 1 RS485M-M 1 Cover Page BASED ON RES485-M VER:A 2 Block Diagram PCB:244mm*244mm 3 Clock Generator Rev : 1.0 L2:PWR L3:GND D 4 Power (CPU Vcore), Intersil 6566(DCR Sense) D 5 Power A(DC to DC) VER:B ->C 1. FIX V_DIMM & GND SHORT BY THERMAL PAD IN LAYER3. 6 Power B(DC to DC),PWR sequence&good 2. ADD D22...P6 3. ADD C525... ...P24 7 K8 - M2 CPU (HT) D VER:C ->D 1. ADD R609,R610, CHANGE R554/R555 value...P3 8 K8 - M2 CPU (MEM) A 2. DEL U8,R586~R590. ADD R653~R655...P7 3. CHANGE CODEC CIRCUIT TO STANDARD 655/883 CO LAY.. ...P21,P32 4. ADD TPM CIRCUIT...P21,P24,P26 9 K8 - M2 CPU (CTRL) B,C 5. ADD IR1 & R656... ...P24 6. CHANGE CPU & SYS FAN TO 3/4 pin CO LAY...P24,P29 7. ADD Q62 FOR MSG LED...