User's Manual

Date Code 20091009 SEL-3031 Instruction Manual
Introduction and Specifications
Specifications
1.7
Specifications
General
Temperature Range
–40° to +85°C per IEC 60068-2-1 and
60068-2-2
Operating Environment
Pollution
Degree: 2
Relative
Humidity: 5–95%, noncondensing
Maximum
Altitude: 2000 m
Dimensions
Wall Mount: 43.9 mm x 219.7 mm x
162.6 mm
(1.73 in x 8.66 in x
6.40 in)
Rack Mount: 43.7 mm x 482.6 mm x
160.0 mm
(1.72 in x 19.00 in x
6.3 in)
Time-Code Input
Port 2, Pins 4 and 6
Format: Demodulated IRIG-B
Input
Impedance: 333

Accuracy: ± 5 milliseconds
Alarm Contact
Form B Contact
(open when energized and passes diagnostics)
Operating
Voltage: 250 Vdc or 190 Vac
Dielectric Test
Voltage: 500 Vrms
Continuous
Carry: 6 A
Communications
Communications Ports
Serial Port 1: EIA-232, EIA-485
(ordering option)
SEL-2812 Fiber-Optic
Port (ST connectors)
Data Speed: 19200 bps;
9600 bps with encryption
card
Serial Port 2, 3: Standard EIA-232
Data Speed: 19200 bps;
9600 bps with encryption
card
Protocols Supported
Modbus, DNP3, SEL MIRRORED BITS
Communications (MB8),
ACSELERATOR
QuickSet SEL-5030 Software Support,
SEL ASCII and Compressed ASCII, SEL
Fast Messaging, IEEE C37.118
Synchrophasors
Radio Latency
SEL-3031
MIRRORED BITS: 5.5 ms typical
Standard: 4 ms typical
SEL-3031 With SEL-3044 Encryption Card
MIRRORED BITS: 16 ms typical
Standard: 15 ms typical
Radio
Transmitter
Frequency Band: 902–928 MHz ISM band
Modulation: GFSK
Operating Mode: Point-to-Point
RF Connector: TNC
Power Output: 1 W (30 dBm) to
100 mW (20 dBm)
in steps of 1 dBm
Channel
Bandwidth: 250 kHz