Contemporary Control Systems BAScontrol20 User Manual - Manual (Page 7)

TD100700-0MB
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2 Specifications
2.1 Universal Input (Channels UI1–UI8)
Configured As Limits
Analog Input
0–10 VDC or 0–20 mA (with external resistor).
12-bit resolution. Input impedance 1 MΩ on voltage.
Temperature Input
Type II: –10º to +190 ºF (–23.3º to +87.8ºC)
Type III thermistors: –15º to +200 ºF (–26.1º to +93.3ºC)
Contact Closure Input
Excitation current 0.25 mA. Open circuit voltage 12 VDC.
Sensing threshold 0.3 VDC. Response time 20 ms.
Pulse Input
(points UI1–UI4)
0–10 VDC for active output devices.
0–12 VDC for passive devices (configured for internal pull-up resistor).
40 Hz maximum input frequency with 50% duty cycle.
2.2 Binary Inputs (Channels BI1–BI4)
Limits
Contact Closure
Excitation current 0.25 mA. Open circuit voltage 12 VDC. Sensing
threshold 0.3 VDC. Response time 20 ms.
2.3 Analog Outputs (Channels AO1–AO4)
Limits
Analog Output 0–10 VDC. 12-bit resolution. 4 mA maximum.
2.4 Binary Outputs (Channels BO1–BO4)
(Class 2 circuits only — requires external power source)
Limits
Model BASC-20R Normally Open contacts. 30 VAC/VDC 2 A.
Model BASC-20T Isolated triac. 30 VAC 0.5 A.
2.5 Communications
Protocol Data Link and Physical Layers
Ethernet
ANSI/IEEE 802.3 10/100 Mbps Ethernet. 10BASE-T, 100BASE-TX, auto-
negotiation of speed and duplex. Auto-MDIX. 100 m maximum segment
length. Default IP address is 192.168.92.68/24.
2.6 Protocol Compliance
Protocol Compliance
BACnet/IP
ASHRAE 135-2008 annex J.
Application specific controller device profile B-ASC.