4. Added Bt Interface In Chapter 3.18.2 - Quectel EC21 Series Hardware Design

1.3 2017-01-24
1.4 2017-03-01
EC21_Hardware_Design
10. Added note about SIMO in Chapter 6.6.
1. Updated frequency bands in Table 1.
2. Updated function diagram in Figure 1.
3. Updated pin assignment (top view) in Figure 2.

4. Added BT interface in Chapter 3.18.2.

5. Updated reference circuit of wireless connectivity
Lyndon LIU/
6. Updated GNSS performance in Table 24.
Rex WANG
7. Updated module operating frequencies in Table 26.
8. Added EC21-AUV current consumption in Table 38.
9. Updated EC21-A conducted RF receiving sensitivity
10. Added EC21-J conducted RF receiving sensitivity in
Geely YANG Deleted the LTE band TDD B41 of EC21-CT
Confidential / Released
6.4.
interfaces with FC20 module in Figure 29.
of in Table 42.
Table 48.
LTE Module Series
EC21 Hardware Design
3 / 94