ICP DAS USA I-7521 User Manual page 33

Comparison Table of I-7522A(D),I-7524(D),I-7527(D)
CPU clock
SRAM
Flash ROM
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
Transmission
Speed
RTC
EEPROM
D/I(3.5V~30V)
D/O(100mA)
Operation
system
Program
download
I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527 User's Manual,Ver2.5 Aug.2015
I-7522A(D)
80188, or compatible
40M Hz
256K
512K
RS-232
or RS-485 with
self-tuner inside
RS-485 with
self-tuner
inside
RS-422/RS-485
(txd3-,rxd3+ ,
txd3+,rxd3-)
No Com4
No Com5
No Com6
No Com7
No Com8
Up to 115.2 kbps
Yes
2K bytes
5 channels
5 channels
MiniOS7
COM1
I-7524(D)
80188, or compatible
40M Hz
256K
512K
RS-232
or RS-485 with
self-tuner inside
RS-485 with
self-tuner inside
RS-232
(txd,rxd,rts,cts)
RS-232
(txd,rxd,rts,cts)
RS-232
(txd,rxd,rts,cts)
No Com6
No Com7
No Com8
Up to 115.2 kbps
Yes
2K bytes
1 channel
1 channel
MiniOS7
COM1
I-7527(D)
80188, or compatible
40M Hz
256K
512K
RS-232
or RS-485 with
self-tuner inside
RS-485 wtih
self-tuner inside
RS-232(txd,rxd)
RS-232(txd,rxd)
RS-232(txd,rxd)
RS-232(txd,rxd)
RS-232(txd,rxd)
RS-232(txd,rxd)
Up to 115.2 kbps
Yes
2K bytes
1 channel
1 channel
MiniOS7
COM1
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