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DVK-AC4490LR-200M

P1-P3P4-P6P7-P9P10-P10
Ramp-AC RF DVK Hardware
Version 1.0
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
wireless.support@lairdtech.com
www.lairdtech.com/ramp
7
CONN-GUIDE-RAMP-AC-DVK-HW
LED
Description
IN RANGE
With a client transceiver, it lights if the client transceiver is in range of a server transceiver
with the same system ID and channel number. With a server transceiver, it always lights
when the server is powered in normal mode and is ready to accept data.
Status 1
Reflects the state of the Command/Data pin (AC4490, AC4486, AC4424, AC4790,
AC4868), the TE pin (AC3124, AC1524) and the Pktmode pin (AC5124). This is
controlled by the PC RTS pin when the Program Mode/Normal Mode switch is set to
Program Mode. Lights when this pin goes low.
Status 2
Lights when the Write Enable pin (AC4424 / 5124/ 3124 / 1524) or GI1 pin (AC4490 /
4486 / 4790 / 4868) goes low. Controlled by WR ENABLE and Gen IN 1 buttons.
Table 3: AC4490 Only Section (AC4486, AC4790, and AC4868 Included)
Item
Description
Potentiometer/AD In
This varies the voltage (0 – 3.3V) presented to the AD In pin (pin 18).
Gen Out 0 LED
Will light when the GO0 pin (pin 1) is
Low
.
Gen Out 1 LED
Will light when the GO1 pin (pin 9) is
Low
.
Gen In 0 Pushbutton
When depressed, will force the GI0 pin (pin 4)
Low
.
Gen In 1 Pushbutton
When depressed, will force the GI1 pin (pin 14)
Low
.
DA_Out
This probe point provides a location for measuring the DA_Out pin (pin 19).
GND
This probe point provides a GND reference location.
Table 4: DB9 (J2) Signal Definitions
J2 Pin#
J1 Pin#
Signal Name
Description
Direction
1
36
DCD
Data Carrier Detect
I
2
14
RXD
Receive Data
I
3
16
TXD
Transmit Data
O
4
34
DTR
Data Terminal Ready
O
5
1,20,21,40
GND
Ground
6
32
DSR
Data Set Ready
I
7
27
RTS
Request To Send
O
8
23
CTS
Clear To Send
I
9
19
RI
Ring Indicator
I
Note: I/O direction is relative to the PC.
Table 5: SDK Board to Transceiver Pin Definitions
J1 Pin
#
Type
AC5124
Pin #
AC5124
Signal
Name
AC1524
AC3124
AC4424
AC4490
AC4486
AC4868
Pin #
AC1524
AC3124
Signal Name
AC4424
Signal Name
AC4490
AC4486
Signal
Name
AC4790
Signal
Name
AC4868
Signal
Name
1
GND
1
GND
5
GND
GND
GND
GND
GND
2
I
2
PKTMODE
17
TE
Command/
Data
Command/
Data
Command/
Data
Command/
Data
Ramp-AC RF DVK Hardware
Version 1.0
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
wireless.support@lairdtech.com
www.lairdtech.com/ramp
8
CONN-GUIDE-RAMP-AC-DVK-HW
J1 Pin
#
Type
AC5124
Pin #
AC5124
Signal
Name
AC1524
AC3124
AC4424
AC4490
AC4486
AC4868
Pin #
AC1524
AC3124
Signal Name
AC4424
Signal Name
AC4490
AC4486
Signal
Name
AC4790
Signal
Name
AC4868
Signal
Name
3
VCC
3
VCC
10
VCC
VCC
VCC
VCC
VCC
4
NC
4
NC
NC
NC
NC
NC
NC
5
VCC
5
VCC
NC
NC
NC
NC
NC
6
NC
6
NC
NC
NC
NC
NC
NC
7
NC
7
NC
NC
NC
NC
NC
NC
8
NC
8
NC
19
NC
NC
DA Out
NC
DA Out
9
NC
9
NC
NC
NC
NC
NC
NC
10
NC
10
NC
NC
NC
NC
NC
NC
11
O
11
RSSI
13
RSSI
RSSI
RSSI
RSSI
NC
12
NC
12
NC
NC
NC
NC
NC
NC
13
NC
13
NC
NC
NC
NC
NC
NC
14
O
14
TXD
2
TXD
TXD
TXD
TXD
TXD
15
O
15
In Range
20
In Range
In Range
In Range
Session
Status
In Range
16
I
16
RXD
3
RXD
RXD
RXD
RXD
RXD
17
I
17
RI_In
NC
NC
NC
NC
NC
18
NC
18
NC
NC
NC
NC
NC
NC
19
O
19
RI_Out
9
NC
NC
GO1
GO1
GO1
20
GND
20
GND
18
RE
NC
AD In
AD In
AD In
21
GND
21
GND
NC
NC
NC
NC
NC
22
I
22
DCD_In
NC
NC
NC
NC
NC
23
O
23
CTS
7
CTS
CTS
CTS
CTS
CTS
24
NC
24
NC
NC
NC
NC
NC
NC
25
NC
25
NC
NC
NC
NC
NC
NC
26
I
26
BDSEL
12
Test Mode/
Packet
Frame
9600 Baud/
Packet
Frame
9600 Baud
9600 Baud
9600 Baud
27
I
27
RTS
8
NC
RTS
RTS
RTS
RTS
28
NC
28
NC
NC
NC
NC
NC
NC
29
NC
29
NC
NC
NC
NC
NC
NC
30
NC
30
NC
NC
NC
NC
NC
NC
31
NC
31
NC
NC
NC
NC
NC
NC
32
O
32
DSR
6
Hop Frame
Hop Frame
Hop Frame
NC
Hop Frame
33
NC
33
NC
NC
NC
NC
NC
NC
34
I
34
DTR
4
NC
NC
GI0
GI0
GI0
35
NC
35
NC
NC
NC
NC
NC
NC
36
O
36
DCD_Out
1
NC
NC
GO0
GO0
GO0
37
I
37
Write
Enable
14
Write Enable
Write Enable
GI1
GI1
GI1
38
I
38
μP _Reset
15
μP Reset
μP Reset
μP Reset
μP Reset
μP Reset
39
VCC
39
VCC
11
VCC
VCC
VCC
VCC
VCC
Ramp-AC RF DVK Hardware
Version 1.0
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
wireless.support@lairdtech.com
www.lairdtech.com/ramp
9
CONN-GUIDE-RAMP-AC-DVK-HW
J1 Pin
#
Type
AC5124
Pin #
AC5124
Signal
Name
AC1524
AC3124
AC4424
AC4490
AC4486
AC4868
Pin #
AC1524
AC3124
Signal Name
AC4424
Signal Name
AC4490
AC4486
Signal
Name
AC4790
Signal
Name
AC4868
Signal
Name
40
GND
40
GND
16
GND
GND
GND
GND
GND
I – Input to the transceiver
O – Output from the transceiver
NC – No Connection (though there is an internal connection in some instances, therefore, this pin should be left
disconnected)
Note: The 40 pin header (J1) on the SDK board maps directly (pin-for-pin) to the 40 pin connector (J3).
Interfacing the AC DVK to RS232 Hardware
The DVK 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
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.
Table 6: DTE, DCE and Null Modem Signal Definitions
DCE
Pin #
DCE Signal
Name
DCE
Direction
DTE
Pin #
DTE Signal
Name
DTE
Direction
Null Modem
Female DB9
Null Modem
Male DB9
1
DCD
O
1
DCD
I
1
4 or NC
2
TXD
O
2
RXD
I
2
3
3
RXD
I
3
TXD
O
3
2
4
DTR
I
4
DTR
O
4
6 and 1 or NC
5
GND
5
GND
5
5
6
DSR
O
6
DSR
I
6
4 or NC
7
RTS
I
7
RTS
O
7
8
8
CTS
O
8
CTS
I
8
7
9
RI
O
9
RI
I
9
NC
Interfacing the AC DVK to RS485 Hardware
The SDK serial board has been designed to interface to RS-485 equipment. If such operation is desired, the
COMM Select jumper should be set to RS485 Enable. The RS-485 circuitry used by the SDK board has been
specially designed to negate the requirement for a DE/RE signal. Thus, the receiver is always enabled unless
the transceiver has something to send to the OEM host. The OEM must ensure that the OEM host does not
send data at the same time as the transceiver; otherwise a RS-485 contention occurs because the RS-485
hardware is half duplex.
Table 7: RS-485 Header Pins
RS-485 Pin Name
Description
A TRUE
The non-inverted form of the serial data. This pin is at rest high.
B INVERT
The inverted form of the serial data (exact inversion of A TRUE). This pin is at rest low.
GND
GND
P1-P3P4-P6P7-P9P10-P10

DVK-AC4490LR-200M

Mfr. #:
Buy DVK-AC4490LR-200M
Manufacturer:
Laird Connectivity
Description:
RF Development Tools AC4490LR-200M 900MHz Developer Kit
Lifecycle:
New from this manufacturer.
Delivery:
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