VT-42 Series product is the exclusive trademark of Vien Tam Joint Stock Company

E1/RS422 Interface Converter

Overview

The E1/RS422 interface converter is a dedicated converter that connects and converts bidirectional signals between RS422 serial port and E1 interface. With a data transmission rate of 2.048 Mbps, the device ensures high performance and stability during transmission.

Feature

  • Support 4 RS422 serial port and 2 E1 port 
  • Support signal indication of E1 port data, E1 port loss of synchronism and upstream alarm 
  • Support optional clock: internal clock, external clock, recovery receiving clock
  • Support E1 port loopback
  • wo optional power supplies: 220VAC or -48VDC
  • Support -25~ 70℃ wide operating temperature range

Specifications

E1 port
  • Interface Protocol Standard: Complies with ITU-T G.703 recommendation
  • Output Jitter Transfer: Complies with ITU-T G.735
  • Input Jitter Tolerance: Complies with ITU-T G.823
  • Line Rate: Bidirectional 2.048 Mbps synchronized data
  • Transmission Distance: 2 km
  • Clock Recovery Accuracy: ±50 ppm
  • Interface Code Pattern: HDB3
  • Frame Format: Unframed
  • CRC Check: No
  • Clock Frequency: 2.048 MHz
  • Interface Connection: BNC, RJ45
  • Interface Impedance: 75Ω unbalanced (BNC) and 120Ω balanced (RJ45)
  • Interface Protection: 1500V Electromagnetic isolation
RS422 port
  • Standard: EIA RS422
  • Transmission Rate: 0 – 115200 bps
  • Line Code: NRZ
  • Interface Type: DB25 Female (comes with a DB25 male to DB9 female cord)
  • Interface Protection: 600W surge protection, 15KV electrostatic protection

Signal Indicators

  • Power indicator
  • E1 loss-of-synchronization alarm indicator
  • E1 link full-code alarm indicator
  • E1 link interference alarm indicator
  • Data receiving from G.703 network indicator
  • Data sending to G.703 network indicator
Power Supply & Operating Environment
  • Power Supply: 220VAC or -48VDC
  • Power Consumption: 2.00W
  • Operating Temperature: -25°C to 70°C
  • Storage Temperature: -40°C to 85°C
  • Relative Humidity: 5% - 95% (non-condensing)
Physical Characteristics
  • Case: metal
  • Dimensions (W x H x D): 440mm × 140mm × 70mm
  • Installation: Desktop or 19-inch rack
  • Weight: 2kg
Certifications            CE, FCC, RoHS