Product manual

XStream-PKG-R™ RS-232/485 RF Modem – Product Manual v5.x00
5. RF Communication Modes
Network configurations covered in this chapter are described in terms of the following:
• Network Topology (Point-to-Point, Point-to-Multipoint or Peer-to-Peer)
• RF Communication Type (Basic or Acknowledged)
• RF Mode (Streaming, Repeater, Acknowledged or Multi-Streaming)
The following table provides a summary of the network configurations supported.
Table 5.1. Summary of network configurations supported by the XStream RF Modem
Point-to-Point
Definition
An RF data link between two modems.
Sample Network Profile *
(Broadcast Communications)
Use default values for all modems.
Sample Network Profile *
(Acknowledged Communications)
All Modems: ATAM (auto-set MY (Source Address) parameter) **
ATDT FFFF (set Destination Address to 0xFFFF)
Basic Communication RF Modes
Streaming Mode (p42), Repeater Mode (p43)
Acknowledged Communication RF Mode
Acknowledged Mode (p46)
Point-to-Multipoint
Definition
RF data links between one base and multiple remotes.
Sample Network Profile *
(Basic Communications)
Base: ATMY 0 (set Source Address to 0x00)
ATDT FFFF (set Destination Address to 0xFFFF)
Remotes: ATAM (auto-set MY (Source Address) parameter) **
ATDT 0 (set Destination Address to 0x00)
Sample Network Profile *
(Acknowledged Communications)
Base: ATMY 0 (set Source Address to 0x00)
ATDT FFFF (set Destination Address to 0xFFFF)
ATRR 3 (set number of Retries to 3)
Remotes: ATAM (auto-set MY (Source Address) parameter) **
ATDT 0 (set Destination Address to 0x00)
ATRR 3 (set number of Retries to 3)
Basic Communication RF Modes
Streaming Mode (p42), Repeater Mode (p43)
Acknowledged Communication RF Modes
Acknowledged Mode (p46), Multi-Streaming Mode (p48)
Peer-to-Peer
Definition
Modems remain synchronized without use of a master/server. Each
modem shares the roles of master and slave. Digi’s peer-to-peer
architecture features fast synch times (35ms to synchronize
modems) and fast cold start times (50ms before transmission).
Sample Network Profile *
(Basic Communications)
Use default values for all modems.
Sample Network Profile *
(Acknowledged Communications)
All Modems: ATAM (auto-set MY (Source Address) parameter) **
ATDT FFFF (set Destination Address to 0xFFFF)
ATRR 3 (set number of Retries to 3)
Basic Communication RF Mode
Streaming Mode (p42)
Acknowledged Communication RF Mode
Acknowledged Mode (p46)
* Assume default values for parameters not listed. Profiles do not reflect addressing implementations.
** AM (Auto-set MY) Command must be issued through a terminal program such as the one incorporated in
the XCTU “Terminal” tab.
© 2014 Digi International Inc. 40