Omni 4000 Series Installation Manual page 175

HART Module (HT/HM)
Physical link
Networks*
Devices
Loop Power
Internal Load Resistance**
LEDs
Minimum Input Threshold for
Carrier Detect
Baud Rate
Common Mode Voltage
* 6 HT/HM modules maximum
** If load resistance is set to "Out" position, an external load resistor from 250 – 600 ohms must
be provided.
Control Outputs/Status Inputs*
Configuration
Configured as an Output
Output Current Capacity
Output Voltage
Scan Rate
Configured as an Input
Input Impedance
Input Voltage
LEDs
Common Mode
*10 Per DM module, one module per unit
Page 8-7
OMNI 4000/7000 Installation Guide – Rev H
Specifications
Frequency Shift Keying (FSK)
4 per Module – 24 Max
•
1 per Network – 24 Max (HT Module)
•
4 per Network – 96 Max (HM Module)
+24 VDC (+/- 0.25V) supplied from the 4/7000 Back Panel or
external DC supply
Selectable for each network (250 ohms, 500 ohms or Out)
Indicators for each network (activity and status)
120 mVpp
1200 bps
±250 VDC to chassis ground
Specifications
FET transistor source (referenced to DC return)
200 mA maximum per point, 500 mA maximum for the DM
module
+DC–1V nominal
Outputs may be pulsed at 50 Hz maximum.
4.7 kΩ
•
Input voltages > +5 VDC to < DC+ will be recognized
as ON (referenced to DC return).
•
Input voltages < +4 VDC will be recognized as OFF
(referenced to DC return).
•
30 VDC Maximum
Operating and fault condition indicators on each channel
±250 V to chassis ground
Technical Specifications