Table 6 lists the electrical, mechanical, and environmental specifications for the CPU
Card.
Table 6. CPU Card Specifications
Parameter
Board Size (with optional
backup battery board)
Connectors
Ethernet Interface
(SR9150 only)
Temperature
Humidity
Input Voltage
Microprocessor
Clock
SRAM
Flash EPROM
Timers
Serial Ports
Serial Rate
Watchdog/Supervisor
Time/Date Clock
Expansion Port
Backup Battery
User ’s Manual
Specification
4.00" × 3.12" × 1.00"
(102 mm × 79.2 mm × 25.4 mm)
one RJ-45 (Ethernet) (SR9150 only)
one 2 × 5, 2 mm pitch (serial programming port)
one 0.9 mm × 0.5 screw-terminal connector strips (accept 14–
30 AWG or 0.05–1.5 mm2 wire)
Direct connection to 10/100-compatible Ethernet networks
with 10Base-T interface via RJ-45 connection
–40°C to +70°C
5% to 95%, noncondensing
5 V DC at 190 mA typical
Rabbit 2000 ?
22.1 MHz
128K, surface mounted, 512K option
2 × 256K, surface mounted
Five 8-bit timers cascadable in pairs, one 10-bit timer with 2
match registers that each have an interrupt
Three serial ports:
? one CMOS-compatible programming port
? remaining ports software-configurable as two 3-wire RS-
232, one 5-wire RS-232, or one 3-wire RS-232/
one RS-485
Selected baud rates up to 115, 200 bps
CMOS-compatible port supports up to 6.45 Mbps
(synchronous)
Yes
Yes
Supports up to 7 I/O cards
Yes: Panasonic CR2330 or equivalent 3 V lithium coin type,
265 mA·h standard using onboard battery holder;
provision for external battery
63
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