User's Manual

SIM900B EVB User Guide
SIM900B-EVB_UGD_V1.01 19 14.04.2010
Notes: the SIM900B EVB is almost the same with the SIM300 EVB.The difference between the
two EVBs are as following:
1.Board to board connector:on SIM900B EVB,the connector is SUNCAGEY’s
BB530-06001-20R; on SIM300 EVB, the connector is ENTERY Company’s 1008-G60N-01R or
JXT’s 210-106001-001
2. R411:on SIM900B EVB,R411 is 15k ohm; on SIM300 EVB,R411 is 0 ohm.