Ethernet, External dial-out modem (rs-232), Irig-b time synchronization – Basler Electric DGC-2020HD User Manual

Page 22: Modbus™ (rs-485), Rdp-110, Real-time clock, Clock holdup

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9469300990 Rev B

Ethernet

Dual Copper (RJ-45) ........................ 10/100BASE-T (style number xxxxDxxxx)
Fiber Optic (BNC) ............................. 10/100BASE-F (style number xxxxFxxxx)

Industrial Ethernet devices designed to comply with IEC 61000-4 series of specifications are
recommended.

External Dial-Out Modem (RS-232)

Protocol ............................................ ASCII
Data Transmission ........................... Full Duplex
Baud ................................................. 4,800 to 115,200
Data Bits ........................................... 8
Parity ................................................ None
Stop Bits ........................................... 1
Connector Type ................................ DB-9 Connector (Male)

IRIG-B Time Synchronization

Standard: .......................................... 200-04, Format B002
Input Signal ...................................... Demodulated (dc level-shifted signal)
Logic High Level ............................... 3.5 Vdc, minimum
Logic Low Level ............................... 0.5 Vdc, maximum
Input Voltage Range ........................ –10 to +10 Vdc
Input Resistance .............................. Nonlinear, approximately 4 k

Ω at 3.5 Vdc, 3 kΩ at 20 Vdc

Response Time ................................ < 1 cycle
Terminals.......................................... 59 (IRIG-B +), 60 (IRIG-B –)

Modbus™ (RS-485)

Baud ................................................. 1,200 to 115,200
Data Bits ........................................... 8
Parity ................................................ None
Stop Bits ........................................... 1
Terminals.......................................... 56 (485 A), 57 (485 B), and 58 (485 shield)

RDP-110

Minimum Wire Size .......................... 20 AWG (0.52 mm

2

)

Maximum Wire Length ..................... 4,000 feet (1,219 meters)
Terminals.......................................... 61 (RDP-110 TxD+), 62 (RDP-110 TxD–)

USB

Specification Compatibility

USB 2.0

Connector Type

Mini-B jack

Real-Time Clock

Clock has leap year and selectable daylight saving time correction. Backup battery sustains timekeeping
during losses of DGC-2020HD operating power.
Resolution ........................................ 1 s
Accuracy...........................................

±1.73 s/d at 25°C (77°F)

Clock Holdup

Battery Holdup Time ........................ Approximately 10 yrs
Battery Type ..................................... Rayovac BR2032, lithium, coin-type, 3 Vdc, 195 mAh

Basler Electric P/N 38526




Specifications

DGC-2020HD

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