SDK-AC4790-1000M Laird Technologies, SDK-AC4790-1000M Datasheet - Page 12
![KIT DESIGN FOR AC4790-1000M](/photos/14/10/141007/sdk-ac4790-1000m_sml.jpg)
SDK-AC4790-1000M
Manufacturer Part Number
SDK-AC4790-1000M
Description
KIT DESIGN FOR AC4790-1000M
Manufacturer
Laird Technologies
Series
AeroCommr
Type
Transceiverr
Specifications of SDK-AC4790-1000M
Frequency
900MHz
Wireless Frequency
900 MHz
Interface Type
20-pin mini connector
Board Size
49 mm x 42 mm x 5 mm
Modulation
FHSS, FSK
Security
1 byte System ID, DES
Operating Voltage
3.3 VDC to 5.5 VDC
Output Power
1 W
Antenna
MMCX
Operating Temperature Range
- 40 C to + 80 C
For Use With/related Products
AC4790-1000M
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant, Lead free / RoHS Compliant
Developer Kit User’s Manual
2.2 I
The development kit serial board is defined as a DCE (Data Communications Equipment). DCE is wired
to interface directly with DTE (Data Terminal Equipment). Typically, DTE is defined as a PC and DCE is
defined as a peripheral. To interface DCE to other DCE, or DTE to other DTE, a null modem is required.
The null modem simply swaps pins to convert a DCE to a DTE and vice-versa. Normally, a null modem
consists of a female and a male DB9 connector. A typical null modem configuration is shown below.
DCE Pin
10/2/05
Number
1
2
3
4
5
6
7
8
9
NTERFACING THE
DCE Signal
Name
GND
DCD
RXD
DSR
TXD
DTR
RTS
CTS
Table 6 – DTE, DCE and Null Modem Signal Definitions
RI
Direction
SDK B
DCE
O
O
O
O
O
I
I
I
OARD TO
DTE Pin
Number
1
2
3
4
5
6
7
8
9
O
DTE Signal
THER
Name
DCD
GND
RXD
DTR
DSR
TXD
RTS
CTS
RI
RS-232 H
Direction
DTE
O
O
O
ARDWARE
I
I
I
I
I
Modem
Female
DB9
Null
1
4
6
7
8
2
3
5
9
6 and 1 or NC
Null Modem
Male DB9
4 or NC
4 or NC
NC
3
2
5
8
7
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