WaveWare SPS-5 v9E - Manual (Page 45)

Appendix H – COMP1 Interface Specifications
This appendix is included for those who want to attach the WaveWare v9E Paging Encoder to existing systems
that output raw data or simple data strings that are normally used in printing status logs on serial printers. The
COMP1 Protocol is designed to emulate one of the operational modes of the Motorola People Finder™ paging
system.
A simple definition of the COMP1 Protocol is that the COMP1 Protocol allows raw ASCII Data to be sent to all
pagers in the Group one list of the WaveWare v9E
Paging Encoder’s Group Database. The group lists must be
defined in TAP mode using the WaveWare v 9 Paging Encoder Setup software. The COMP1 Interface supports
paging messages up to 255 characters in length, contact monitoring, and timed messaging.
To configure your WaveWare v9E Paging Encoder to use the COMP1 paging protocol, you may be required to
configure the com port settings in the paging encoder. Please refer to Appendix B – Com Port and Network
Settings, for details on configuring communication protocols.
Your WaveWare v9E Paging Encoder will typically communicate with a PC or other host device via RS-232 at
9600 Baud, 8 data bits and 1 stop bit. The eighth data bit is ignored (no parity). You can configure the paging
system for other serial communication parameters.
The paging encoder maintains an input buffer, which can receive commands from the PC while paging messages
are being transmitted. The paging encoder encodes paging messages into
POCSAG paging format and transmits
the encoded paging message through the internal radio transmitter. If the Carrier Detect function is enabled,
transmissions will be delayed while interfering signals are detected.
Control characters recognized by the paging encoder in COMP1 Protocol mode include:
CARRIAGE RETURN <CR> $0D
LINEFEED <LF> $0A
Control characters generated by the WaveWare Paging Encoder in COMP1 Protocol mode when software flow
control mode is active include:
XON <XON> $13
XOFF <XOFF> $11
In COMP1 Interface Protocol, the WaveWare v9E Paging Encoder does not provide feedback response
signals on the serial port, other than flow control signals, when in Non-Verbose mode. COMP1 is defined as a one
way (simplex) protocol. The Verbose mode available with the WaveWare v9E Paging Encoder provides a serial
port response, to allow software development and troubleshooting using a terminal software program.
The COMP1 operation is as follows:
When incoming data is detected on the serial port, one of three things will happen:
1) A carriage return character is detected in the Data stream
2) A time period of approximately 10 seconds elapses after receipt of the last character on the serial port
3) 256 characters or more accumulate in the serial port input buffer. If any of these three events occur, the paging
system will strip any carriage return and linefeed characters and transmit the remainder of the Data stream to all
pagers defined in the encoder's pager database.
If the serial port input buffer becomes filled with greater than 1000 characters, the paging system will output either
a hardware or software flow control response, depending upon how Hardware/Software Flow Control is
configured. Once the serial port input buffer drops below 450 characters, the paging system will use flow control
signals to indicate that it is no longer busy and that additional data can be delivered to the serial port.
NOTE: When using COMP1 mode, please note that all data is transmitted to the pagers listed in group one of the
WaveWare v9E Paging Encoder’s pager database. When setting up for COMP1 operation, you should limit the
pager quantity in the pager database to no more than a few pagers, in order to avoid excessive paging
transmissions.
This Completes the “COMP1 Interface Specifications”