Bộ chuyển đổi RS-485/422 sang E1 3Onedata E485
E485 is a RS-485/422 to E1 converter which could implement bidirectional conversion between RS-485/422 serial port and E1 digital port. It adopts desktop mounting to meet the requirements of different scenes.
The data port of this device is operating at a rate of unframed 2.048Mbps of E1. User data has accounted for all 32 timeslots of E1 frame. The main E1 link could provide 3 types of clock source: E1 port recovery clock, internal clock and external clock of digital port. E485 provides loopback and phase adjustment function, which is convenient for digital port testing.
DIP switch could implement functions like impedance setting, BNC grounding setting, clock setting, loopback setting, restoring to factory setting, etc. Hardware adopts fanless, low power consumption, wide temperature range design, and can be widely used in various departments and systems such as industrial control, environment monitoring, network monitoring, etc.
Tính năng
- Support 1 RS-485/422 serial port and 1 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
- Two optional power supplies: 220VAC or -48VDC
- Support -25～70℃ wide operating temperature range
Thông số kỹ thuật
| E1 Port |
Interface Protocol Standard: conform to the recommendation of ITU-TG.703
Output Jitter Transfer: conform to the recommendation of ITU-TG.735
Input Jitter Tolerance: conform to the recommendation of ITU-TG.823
Output Jitter: conform to the recommendation of ITU-TG.823
Line Rate: bidirectional 2.048Mbps synchronized data
Transmission Distance: 2km
Clock Recovery Accuracy: ±50ppm
Interface Code Pattern: HDB3
Frame Format: un-framing
CRC Check: No
Clock Frequency: 2.048MHz
Interface Connection: BNC, RJ45
Interface Impedance: 75Ω imbalance(BNC) and 120Ω balance (RJ45,)
Interface Protection: 1500V Electromagnetic isolation |
| RS-485/422 Port |
Standard: EIA RS-485, RS-422
RS-485 Pin Definition: GND, 485+, 485-
RS-422 Pin Definition: GND, RD-, TD-, RD+, TD+
Interface Rate: 0～115200bps
Line Code: NRZ
Interface Type: DB25 Female (equipped with DB25 male to DB9 female cord)
Connection Cable: DB25 male to DB9 female cord
Interface Protection: 600W surge protection, 15KV electrostatic protection |
|
LED Indicator |
Power indicator, loss-sync alarm indicator, upstream E1 link whole code1 alarm indicator, E1 link inference alarm indicator, data receiving from G.703 network indicator, data sending to G.703 network indicator |
|
Power Requirement |
220VAC or -48VDC |
| Power Consumption |
2.00W |
| Environmental Limit |
Operating temperature:-25~70℃
Storage temperature: -40~85℃
Relative humidity: 5%～95%（no condensation） |
| Physical Characteristic |
Shell: Plastic
Installation: desktop installation
Dimension (W x H x D): 227.4mm×146.3mm×42.7mm
Weight: 260g |
| Certification |
CE, FCC, RoHS |
Thông tin đặt hàng
| Available Models |
RS-485 |
E1 |
Power Supply Range |
| E485 |
1 |
1 |
220VAC or -48VDC |
Tài liệu
Datasheet
