Lantronix I/O 2100, User Manual

Page: 178 / 190

IntelliBox-I/O 2100 User Guide 178
E: Isolated I/O Specifications
Absolute Maximum Ratings
Parameters Symbols Value Units Notes
Operating temperature T
OPR
-40 to
75 C
Output characteristics of Digital I/O ports (see note 5)
Load current when ON I
L
120 mA 1
Breakdown load voltage when OFF V
L
+/-50 VDC
Input characteristics of Digital I/O ports (see note 5)
Input current I
I
8 mA 2
Input voltage V
I
10 VDC 2, 4
Input reverse voltage V
I
-50 VDC
Transient voltage suppression on digital I/O (see note 5)
Peak pulse power dissipation on 10/1000 usec Waveform P
TVS
600 W
Isolation Characteristics of digital I/O ports (see note 5)
Between primary to secondary of IO ports V
IOISO1
1500 VAC
Between adjacent IO Ports V
IOISO2
300 VAC
Isolation characteristics of relay port (see note 5)
Between contacts and coil (inner circuit) V
RLYISO1
1500 VAC
Between open contacts V
RLYISO2
300 VAC
Between relay port and IO Ports V
RLYISO3
1500 VAC
Stressing the device above the rating listed in the Absolute Maximum Ratings table may
cause permanent damage to the IO ports. Exposure to Absolute Maximum Rating
conditions for extended periods may affect the IO port reliability.
Notes:
1. Solid state relay output; can source or sink current. See Figure C-1.
2. Opto-isolator with emitter input and a series resistor to limit current. See Figure C-2.
3. To realize a logic high input, a typical current of I
I
= 1mA is required; that translates to
a minimum of V
IH
= 3V.
4. For V
I
= V
IH
> 10 VDC an external series resistor is required as shown in Table C-1.
5. Connect RELAY and DIGITAL IO Ports only to Class III or Class 2 circuit.