XT09-PKT-R Digi International/Maxstream, XT09-PKT-R Datasheet - Page 10

• Manufacturer Part Number: XT09-PKT-R
• Description: MODEM RF 900MHZ RS232/485
• Manufacturer: Digi International/Maxstream
• Series: XTend™r

Specifications of XT09-PKT-R

• Function: Transceiver, Modem
• Frequency: 900MHz
• Interface: RS-232
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Applications: -
• Sensitivity: -
• Data Rate - Maximum: -
• Modulation Or Protocol: -

9XTend™ RS‐232/485 RF Modem ‐ Product Manual v2.x4x [2007.01.04]
2.3. RS-485 (4-wire) & RS-422 Operation
2.3.1. DIP Switch Settings and Pin Signals
2.3.2. Wiring Diagrams
Table 2‐03. RS‐485/422 (4‐wire) Signals and their implementations on the XTend RF Modem
Figure 2‐13. XTend RF Modem in an RS‐485 (4‐wire) environment
Figure 2‐10.
RS‐485 (2‐wire) Half‐duplex
DIP Switch Settings
Figure 2‐12.
RS‐485 (2‐wire) w/ Termination (optional)
Termination is the 120 Ω resistor between T+ and T‐.
DIP Switch settings are read and applied
only while powering‐on.
© 2007 MaxStream, Inc.
DB-9 Pin
1, 4, 6
2
3
5
7
8
9
RS-485/422
R+ (RB)
R- (RA)
T+ (TB)
Name
T- (TA)
PWR
GND
Transmit Negative
Receive Negative
Transmit Positive
Receive Positive
Description
Signal Ground
Data Line
Data Line
Data Line
Data Line
Power
Figure 2‐11.
Pins used on the female RS‐232 (DB‐9)
Serial Connector
not used
Optional power input that is connected internally
Serial data received by the RF modem
Serial data received by the RF modem
Serial data sent from the RF modem
Serial data sent from the RF modem
to the front power connector
Implementation
Chapter 2 ‐ Interfacing Protocol
Ground
10