HT304I-2R/HT304I-4IO/ is an Ethernet IEEE802.3 media converter featuring four 100Mbps Ethernet ports. The 100Mbps Ethernet interfaces provide wire-speed 100M bandwidth, Fiber optic distance: 20/40/60/80/120 km. The device also includes 2 RS232/422/485 serial ports (selectable) or 4 digital I/O ports.
Technical Parameters
◆ Fiber Optic Section
Optical Ports: 1
Fiber Type: Single-fiber or Dual-fiber
Fiber Interface: SC/FC/ST/LC (SFP) optional
Wavelength: 850nm/1310nm multimode; 1310nm/1550nm single-mode
Unrepeated Transmission Distance: 0~80Km
Typical transmit power: Single-mode 100μW — 0.93mW
◆10/100M Ethernet Interface
Protocol: Compliant with IEEE 802.3ab, IEEE 802.3z
Speed: 10/100 auto-negotiation, full/half-duplex auto-sensing
MAC Address Table: Supports learning up to 4096 MAC addresses
Physical Interface: RJ45 port with Auto-MDIX support
◆Serial Interface
Standard
EIA/TIA-232 RS-232 (ITU-T V.28)
EIA/TIA-422 RS-422 (ITU-T V.11)
EIA/TIA-485 RS-485 (ISO/IEC8284)
Serial Interface:
RS-422: TxD+ TxD- RxD+ RxD- GND
RS-485 4-wire: TxD+ TxD- RxD+ RxD- GND
RS-485 2-wire: A (corresponding to TX+) B (corresponding to TX-) GND
RS-232: RXD TXD GND
◆Digital I/O Interface
Output Interface Type:
Dry Contact
1: Signal relay dry contact output;
2: Optical MOS relay output (Max. internal resistance 25Ω)
Pulse Quantity:
Optical MOS relay output, 0-VCC (VCC is the device's supply voltage)
Response Time
Signal relay dry contact output: <1.2ms, Optical MOS relay output: <0.6ms
Switching Signal
Signal Relay Dry Contact Output: 30VDC/0.5A; Optical MOS Relay Output: 245VDC/0.12A
Maximum Switching Frequency: 50Hz
Output Surge Protection:
Signal Relay Dry Contact Output: None; Optical MOS Relay Output: TVS + Solid Discharge Tube Protection
◆Environmental Specifications
Operating Temperature: -40°C to +85°C
Storage Temperature: -40°C to +85°C
Operating Humidity: 0% to 95% (non-condensing)
MTBF: >100,000 hours
