User Manual

4 MHX-2400 Operating Manual: Chapter 2 Initial Setup and Configuration
2.1 Pinout
Figure 1 provides a top-view pinout drawing of the MHX-2400 module. The
corner pins (1,20,21,40) are labeled directly on the module.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
AVcc
AVcc
DVcc
DVcc
DVcc
DVcc
DVcc
NC
\Config
\Reset
GND
GND
GND
GND
GND
GND
GND
NC
NC
NC
NC
NC
NC
NC
NC
RxMODE
TxMODE
RSSI3
RSSI2
RSSI1
CTS
RTS
DSR
NC
DTR
TxD
MHX-2400
19
20
NC
NC
RxD
DCD
37
38
39
40
Figure 1 - Pinout (Top View)
Pin Name No. Description I/O
AVcc 1,2 Positive Supply for Radio Circuitry. See Section
2.3 for DC Characteristics
I
\Config 9
Leave unconnected. For factory use only. Do
not ground
CTS 28 RS-232 Clear to Send. Active low (TTL level)
output. See Appendix B for a complete description
of all RS-232 signals.
O
DCD 21 RS-232 Data Carrier Detect. Active low (TTL
level) output.
O
DSR 26 RS-232 Data Set Ready. Active low (TTL level)
output.
O
DTR 24
RS-232 Data Terminal Ready. Active low
(TTL level) input.
I
DVcc 3-7
Positive Supply for Logic circuitry and I/O
pins. See Section 2.3 for DC Characteristics
I