SUPP009-0907
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XBox Functionality
The SNIB2 also incorporates full XBox gateway functionality, thereby eliminating the
need for an XBox. This enables the SNIB2 to function as a gateway for up to 63
controllers (with inclusion of the NET*MUX4), and provides the ability to globalize
certain features.
Globalizing is the task of connecting two or more controllers in order to share credential
user management and control zone information amongst all connected controllers.
Globalization can only be performed within a local XBox node. One SNIB2 acting as an
XBox cannot talk to and share information with another XBox or another master SNIB2.
Higher Serial Communication Speeds
Communications between multidropped SNIB2s are now supported at speeds up to
115,200 bps with Cat5/Cat6 cable.
When using one or more NET*MUX4s, the maximum SNIB2 speed is limited to 9600
bps. When combining SNIBs and SNIB2s, the maximum speed is limited to the lower
SNIB speed – that is, the lowest speed that all connected devices have in common.
Communications become less robust as baud rates increase, wire gauge decreases,
and distances increase. Most tables in the DIGI*TRAC Design and Installation Guide for
wire gauge and distance are based on 9600 bps.
At higher baud rates, maximum distances are decreased and minimum wire gauge is
increased. It may not be possible to implement the higher baud rates supported by the
SNIB2 if you have long wire runs or small wire gauges.
In order to use the SNIB2, your controller must be running
CCM 7.3.08 or higher; use Vn. 7.4.00 or higher if your
computer has Velocity 3.0. To check your current version
number, refer to “Checking CCM and BIOS Version” on page
22.
You can install the SNIB2 board in any Hirsch DIGI*TRAC
controller except the M1N.
