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Chapter 4: Appendix A - Specifications
4-1
Echo
User's Manual, ver. 0.00
Appendix A: Specifications
Operating Environment
Storage
temperature: -60
°
C to 100
°
C
Operating
temperature:
5
°
C to 65
°
C
Relative humidity:
5 - 90% no condensing
Air movement:
no requirement
Altitude: 15,000 feet (5000 metres)
Power Requirements
Typical @ 20
°
C; +20%, -5% on the current (DC) value
Echo 8 ports RS-485
+5 VDC
+/- 5%
@ 125mA (no driver loads)
@ 445mA (all drivers loaded)
Echo 8 ports RS-232
+5 VDC
+/- 5%
@ 100 mA
+12 VDC
+/- 10%
@ 5 mA (no driver loads)
@ 100 mA (all drivers loaded)
-12 VDC
+/- 10%
@ 4 mA (no driver loads)
@100 mA (all drivers loaded)
PC Bus Interface
PC interrupt is jumper selectable, (3, 4, 5, 7, 10, 11, 12, or
15)
Base address for I/O ports is DIP switch selectable
One half length ISA 8 bit or 16 bit slot
Communications
16C654 UARTs communication controllers
Programmable baud rate generator - up to 115K baud on all
ports
Control Signals
RS-232
RxD, TxD, RTS, CTS, DTR, DCD,
DSR, RI
RS-422/485
RX±,
TX±, RTS±, CTS±
Dimensions
Length:
16.4
cm
Height: 10.6 cm
Connectors/Interface
DB-9 or DB-25 male cable or connector box