Fluke Biomedical 960CI-200 - Manual (Page 5)

Introduction
1
1-1
Section 1
Introduction
1.1 General Description
The 960CI-200 series Communications Isolator is designed for use in Victoreen’s 960 Digital Radiation Monitoring
System for Class 1E applications. Its function is to isolate the safety related monitor from a commercially rated
computer both electrically and mechanically. The monitor transmits data serially to the 960CI isolator through a fiber
optic cable. Figure 1-1 is a block diagram of the Communications Isolator Module.
1.2 Application
The 960CI-200 series Communications Isolator Module is used for communication isolation whenever a safety related
monitor needs to be connected to a computer. This isolation is for the serial asynchronous communication link. The
960CI is designed for use with the 960IC Card Cage Assembly, which holds up to 8 960CI modules.
1.3 Specifications
General specifications for the 960CI-200 Communications Isolator Module are listed below. The module (960CI-200)
is only available rated for nuclear safety-related applications. However, the module may also be used in commercial
applications.
The 960CI-200 module is assembled by techniques and with parts selected for the reliability required in a nuclear
application. Any repairs made to the nuclear rated module will void its safety-related rating. The module (960CI-200)
must be returned to the factory for authorized qualified ANSI 45.2.6, 1978, Skill
Level II service.
Specifications:
Dimensions (H x W x D) 12in x 6.5in x 1in (304.8mm x 156.2mm x 25.4mm)
Weight 1 lb., 9 oz. (708.74g)
Operating Temperature 32
° to 122°F (0° to 50°C)
Relative Humidity 0 to 95% noncondensing
Power + 5 VDC @ 500mA, 115 VAC
Isolation Optical, 50 kV minimum
Processor Motorola 6809
Data Bus 8 internal data lines D0 through D7
Address Bus 16 internal address lines A0 through A15
Control & Timing 01, 02 two phase 1 MHz clock R/W, short 02 early 0 for
WRITE reset
Channel ID 32 codes, switch selectable
Communication One way optical serial line to a safety related monitor;
two way serial link to a computer
Baud Rates See Table 4-2
Memory 32K x 8 PROM, 24 x 8 RAM