Curtiss-Wright SSR/CHS/001, Manual, Page: 8 / 24

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24 Nov. 2020 | DST/AE/022
CURTISSWRIGHTDS.COM
SSR/CHS/001
Output voltage
operating voltage -7 – 12 V Absolute voltage of the operating signal must stay within this
range.
logic 0 – – -2 V V
0+
- V
0- ;
R
LOAD
= 100Ω.
logic 1 2 – – V V
0+
- V
0- ;
R
LOAD
= 100Ω.
short circuit current – – 250 mA
short circuit duration ∞ – – s Only one output may be shorted at a time.
ESD protection -15 – 15 kV Human Body Model.
Output resistance – 1.5 – kΩ
TABLE 13 BTTL outputs
PARAMETER MIN. TYP. MAX. UNITS CONDITION/DETAILS
Outputs – – 1 –
Signaling rate
REC_STATUS – – 1 Hz Recorder status; high indicates an error condition. Mirrors
the Error LED.
Output voltage
logic 0 – – 0.44 V Sinking 24 mA.
logic 1 3.76 – – V Sourcing 24 mA.
short circuit current – – 50 mA
short circuit duration ∞ – – s To GND.
Output resistance – 121 – Ω
TABLE 14 Brightness control inputs
PARAMETER MIN. TYP. MAX. UNITS CONDITION/DETAILS
Inputs – – 1 –
Input voltage
BRIGHT/DIM± -10 0 10 V DC level controls the brightness of the front panel. Range of
0 to 100% brightness is controlled by an SNMP command.
Isolation voltage – – 1,000 V
Input resistance
LAMP(0) to LAMP(1) 2.3 2.8 3.3 kΩ
TABLE 12 RS-422 outputs (continued)
PARAMETER MIN. TYP. MAX. UNITS CONDITION/DETAILS