XC09-009PKC-RA Digi International/Maxstream, XC09-009PKC-RA Datasheet - Page 11

• Manufacturer Part Number: XC09-009PKC-RA
• Description: MODEM RF 900MHZ RS232/485 W/ACC
• Manufacturer: Digi International/Maxstream
• Series: 9XCite™r

Specifications of XC09-009PKC-RA

• Frequency: 900MHz
• Data Rate - Maximum: 9.6kbps
• Modulation Or Protocol: FHSS, FSK
• Power - Output: 6dBm
• Sensitivity: -108dBm
• Voltage - Supply: 2.85 V ~ 5.5 V
• Current - Receiving: 45mA
• Current - Transmitting: 55mA
• Data Interface: Connector, Female DB-9
• Antenna Connector: RP-SMA
• Operating Temperature: 0°C ~ 70°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Memory Size: -

9XCite™ RS‐232/485 RF Modem – Product Manual v2.1 [2007.01.04]
RS-485/422 Connection Guidelines
Figure 2‐14. XCite RF Modem in an RS‐422 environment
The RS-485/422 protocol provides a solution for wired communications that can tolerate high
noise and push signals over long cable lengths. RS-485/422 signals can communicate as far as
4000 feet (1200 m). RS-232 signals are suitable for cable distances up to 100 feet (30.5 m).
RS-485 offers multi-drop capability in which up to 32 nodes can be connected. The RS-422 proto-
col is used for point-to-point communications.
Suggestions for integrating the XCite RF Modem with the RS-485/422 protocol:
Figure 2‐15. Male DB‐9 to RJ‐45 Adapter (yellow)
Figure 2‐16. Female DB‐9 to RJ‐45 Adapter (green)
An XCite RS-232/485 RF Modem ‘Accessories Kit’ is available that includes connectors that facilitate
RS-485/422 and other serial communications.
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© 2007 MaxStream, Inc.
When using Ethernet twisted pair cabling: Select wires so that T+ and T- are connected to
each wire in a twisted pair. Likewise, select wires so that R+ and R- are connected to a
twisted pair. (For example, tie the green and white/green wires to T+ and T-.)
For straight-through Ethernet cable (not cross-over cable) - The following wiring pattern
works well: Pin3 to T+, Pin4 to R+, Pin5 to R-, Pin6 to T-
Note that the connecting cable only requires 4 wires (even though there are 8 wires).
When using phone cabling (RJ-11) - Pin2 in the cable maps to Pin3 on opposite end of
cable and Pin1 maps to Pin4 respectively.
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