NRS70 Series
SECTION 5
NRS70OPS
070803 Version 1 Issue 2
www.snellwilcox.com
5.3
RollCall Control via a PC
For full details please see the operator’s manual for the IQSPCR,
RollCall™ Software Installation Guide &
Operational Overview
IQSPCR is a PC application that runs under Windows 3.1x or 95. It allows full remote control of RollCall for this
and other compatible units.
SOFTWARE INSTALLATION GUIDE
System Requirements
The minimum requirement for installing the RollCall software is:
RollCall PC Control Software (IQSPCR).
IQ Modular 1RU or 3RU rack with Gateway card installed.
PC running Microsoft Windows 3.1x or Windows ‘95 .
Either a RollCall PC card (IQCPC) or a RS232 to RS422 9 way converter fitted to the PC.
Connecting the hardware:
There are two choices for connecting the PC to the Modular IQ System:
1.
75 Ohm co-axial cable BNC for box-to-box connections running at 2.5 Mbs.
3RU box
PC
1RU box
75 Ohm T-pieces
75 Ohm terminator
75 Ohm terminator
75 Ohm sections
75 Ohm network
IQCPC
Each unit is physically joined via a T-piece connector. Each T-piece is connected by 75 Ohm co-ax cable to
create a section. Each section of cable can be up to 400m. Each end of the network is terminated by a
75 Ohm terminator.
2. RS422 running at 38.4 kbs asynchronous:
1RU box
3RU box
75 Ohm network
RS422 link
Computer
Gate
-way
RS232/422
converter