IQH1S 1U Enclosure
SECTION 4
IQH1SOPS
23/11/06
www.snellwilcox.com
Version 1 Issue 4
4.7
CONTROL SYSTEM OVERVIEW
The RollCall
control system allows RollCall
compatible modular cards fitted into 1U or 3U main
frames and dedicated units, to be controlled by
means of an active front panel (local or remote), a
PC. (fitted with a RollCall
card) via the
RollCall
(a single coaxial cable) network or by a
P.C. via an RS422 connection.
A
R
emote
C
ontrol
I
nter
-F
ace (RCIF) is used
between
the
active
front
panel
and
the
communication connectors and is housed in the
mainframe.
The active front panel may communicate to either of
the following:
•
Modular cards contained within the local
mainframe
•
The RollCall™ network (via BNC Connector)
•
PC via 9-pin D connector for RS422 or
RollCall™ 485
Operation uses a system of menus displayed in two
LCD windows on the active front panel.
Menu items are selected by push buttons and further
menu selections made by rotating a spinwheel and
pressing a push button.
The spinwheel also allows continuously variable
parameters, (where applicable) to be adjusted and
the settings seen in the LCD window.
Modules may be accessed and controlled by
activating the RCIF system, stepping into a list of
modules and connecting to a particular module.
The active control device may then control the
module.
