Crystal Vision
08/10/2008 11 Statesman User Manual V4 R1.43
2. Hardware installation
The installation package will depend on the items ordered. A typical installation includes
the following components:
• a CD containing the Statesman Installer and activating license
• a USB security device or ‘dongle’
• for serial networks - at least one RS232 to RS422 converter and at least one
serial connection cable
• for TCP/IP networks - at least one Ethernet cable
Please check the actual contents against the delivery note and if any of the items are
missing contact Crystal Vision support immediately.
2.1 Connecting racks
Cabling requirements vary depending on system design. The easiest option with current
Indigo racks is to build a TCP/IP network to which racks and workstation PCs are
connected. If older racks are used with only RS422 serial connections, they can be
connected as one or more RS422 networks attached to a Master Statesman PC. Statesman
supports the simultaneous use of TCP/IP and RS422 networks.
In a Multi PC network, the Master PC is a designated PC running the MySQL database,
the Apache server and the Crystal Vision Licence Server. In both Single and Multi PC
installations the Master PC has the USB dongle fitted and runs a copy of Statesman.
2.1.1 Connecting network racks
Where racks are co-located it is recommended that they are connected to an Ethernet hub
using standard CAT 5 RJ45 patch cable. The hub can then be connected to either the
Master PC or another hub if there are other clusters of racks in the network.
Note: At the present time, Statesman doesn’t support connecting a rack directly to a PC
using a cross-over cable. Only standard straight-through cables and a hub should be used;
even for a Single PC system.
Each device on a network MUST have a unique IP address assigned from a limited range
of addresses. The factory default is for Indigo racks to request an address from a DHCP
server. Because the DHCP server manages addresses automatically, multiple devices can
never have the same IP address. This is good, since duplicate addresses can cause a
network to crash.
However, it also means that as devices leave the network or are added, IP addresses can
change. This can make it difficult for devices to be found quickly using IP addresses
when fault-finding or during system configuration. For these reasons fixed or static IP
addresses are sometimes preferred to DHCP.
Fortunately, it is a simple matter to configure Indigo racks to use fixed addresses in the
same range as all the Statesman PCs.
Tip: It is strongly recommended that the address space chosen for a Statesman network is
taken from a private ‘non-internet’ range.