|
DSX Access Systems, Inc. |
PC Master
![]()
PC Master TCP/IP Slave Communications
The PC Master (PCM) software is a program
that is designed to allow a PC to perform the polling and communications duties
normally handled by the Master panel. A
computer running the PCM software will take the place of the Master panel. This arrangement provides three advantages:
1.
Communications
to the Slave panels can be routed through a serial port or through the TCP/IP network.
2.
Greater
control can be exerted over the Master to Slave polling frequency. This will
allow the system to function over slower communications methods.
3.
The
communications to the Slave panels can be separated into several different
channels that operate simultaneously.
This can provide a substantial increase in the rate of data collection
and data distribution.
1.
The PCM
software is purchased separately from the WinDSX
software.
2.
It is installed
on a PC that conforms to the PC Requirements of WinDSX.
3.
The
Workstation running PCM, the Comm Server and all LAN
serial devices must have a static TCP/IP address.
The Comm Server
communicates to the PCM computer over the network. It downloads the Location
data to the PCM and supervises the communication to the PCM just as if it were
a Master Controller. The PCM then communicates and Polls the Slave panels just
like a Master Controller. The only difference is the Slave controllers are connected
to the Network using LAN Serial Devices such as the one manufactured by DSX. The
PCM can communicate with up to 63 Slave controllers each with its own LAN
connection or multiple Slave Controllers can be connected to the same LAN
serial device. The PCM supervises the communication to these LAN connected
Slave panels and performs all global communication duties such as Linking and
Anti-Passback.
Each PCM represents 1 Location. Multiple PCM
computers can be used to allow the Comm Server to
communicate with more than 1 Location via the
LAN/WAN.

