Curtiss-Wright SAM/DEC/008, Manual, Page: 4 / 12

TABLE 5 RS-485
PARAMETER MIN. TYP. MAX. UNITS CONDITION/DETAILS
Channels – – 1 –
Signaling rate
X-PROG – – 1 Mbps
Input voltage
operating range -7 – 12 V
logic 0 – – 0.2 V V
IN+
- V
IN-
.
logic 1 0.2 – – V V
IN+
- V
IN-
.
common mode voltage -7 – 12 V
overvoltage protection -7 – 12 V Voltages outside of this range can damage input.
ESD protection -15 – 15 kV Human Body Model.
Output voltage
operating range -7 – 12 V
logic 0 – – -2 V V
0+
- V
0- ;
R
LOAD
= 100Ω.
logic 1 2 – – V V
0+
- V
0- ;
R
LOAD
= 100Ω.
common mode voltage -7 – 12 V
short circuit current – – 250 mA
short circuit duration ∞ – – s Only one output may be shorted at a time.
Input resistance
between inputs – 120 – Ω Module powered on and inputs terminated.
between inputs – 120 – Ω Module powered off and inputs terminated.
each input to GND – 20 – MΩ Module powered on.
each input to GND – 60 – kΩ Module powered off.
Output resistance – 120 – Ω
SAM/DEC/008
4
19 Apr. 2016 | DST/Z/010
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