8E1 and 32 Telephone and 4 1000M Ethernet integrated services access product is a product developed by Beijing Fibridge Co., Ltd.
8E1 and 32 Telephone and 4 1000M Ethernet integrated services access product is a product developed by Beijing Fibridge Co., Ltd. using large-scale integrated circuits with independent intellectual property rights. It employs time-division multiplexing technology to mix and encode Ethernet signals and E1 signals for transmission over a single pair of optical fibers. This device enables the hybrid transmission of 100M Ethernet services, E1 services, telephone services, V35 services, data services, and two-wire/four-wire interfaces, with transmission channels divided into optical transmission channels and E1 transmission channels. The unit features a 19-inch, 1U chassis design, offering high integration, compact size, low power consumption, reliable operation, and ease of installation and use.
1. Provides 1 optical port, speed rate is 1.25G
2. Provides 8E1 port, All-digital clock recovery and smooth phase-locked technology
3. Provides 4 10/100/1000M adaptive Ethernet ports, supporting logical isolation, full/half duplex auto adaptive
4. Provides 32 service slots, each slot is 1 channel service. This datasheet is for 32 channels telephone
5. Service small cards are: local telephone small card, remote telephone small card, hotline telephone small card, Magneto Telephone small card, Ethernet small card, 2/4 cores audio small card, data small card(RS232\RS422\RS485), etc.
6. Power supply is DC-48V, DC+24V, DC-24V, 220VAC, etc.
7. Transmission distance is SM20km, up to 120km
1. Optical port
Wavelength: 1310nm (standard model) or 1550nm
Transmission Power: ≥ -12dBm
Receiving Sensitivity: ≤ -26dBm (BER ≤ 10⁻¹¹)
Connector Type: FC or SC
Transmission Mode: Dual-fiber or Single-fiber
2. E1 Port
The product supports 8E1, compliant with G.703 protocol
Speed: 2048Kb/s ±50ppm
Code Pattern: HDB3
Impedance: 75Ω (unbalanced) or 120Ω (balanced)
Jitter: Compliant with G.742 and G.823 recommendations
Allowable Attenuation at Input Port: 0～6dB
3. Ethernet port
Supports line speed 10Base-T/100Base-T full/half duplex auto adaptive
Compliant with IEEE802.3/IEEE802.3u standard
RJ45 port
4. Data Port(Includes RS232, RS485, RS422)
Data port speed is 300--19.2Kbit/s Baud Rate Adaptive, DCE mode
5. V.35 port
Nominal Rate: N*64Kbps (N ≤ 32)
Operating Mode: DCE, DTE optional
6. Telephone Channel Interface and Signaling
Switching Side
Off-Hook Impedance: < 500Ω
On-Hook Impedance: > 10KΩ
User Side
Loop Resistance: ≤ 2000Ω (including telephone)
Idle Circuit Voltage: ≤ 50V
Loop Current: 25mA
Off-Hook Threshold: 8mA
Polarity Reversal Delay: < 50ms
Dialing: Pulse dialing single pulse distortion < 5ms; In-band audio dialing total distortion complies with voice interface characteristics
Off-Hook Delay: < 100ms
Ringer Current:
Remote (FXS) Ringing Generator
Frequency: 25 Hz ± 3 Hz
Amplitude: 75V ± 5Vrms
Ringing Delay: < 50ms
Total Output Power: ≤ 10W (per chassis)
Local (FXO) Ringing Detection
Amplitude Range: Minimum 38Vrms
Voice Interface
Impedance: 600Ω or three-element complex impedance
Audio Frequency Range: 300-3400 Hz
Encoding Law: CCITT Recommendation G.711 A-law
7. 2/4 wires audio port
Two-Wire Interface Level: Two-Wire Transmit: 0dBr, Two-Wire Receive: -3.5dBr
Four-Wire Interface Level: Four-Wire Transmit: 0dBr, Four-Wire Receive: 0dBr
Return Loss: 300-600 Hz > 12dB, 600-3400 Hz > 15dB
Frequency Response: 300-3400 Hz (+0.5, -0.5dB)
Idle Channel Noise: ≤ -65dBm0p
Gain: -45 dBm0 —— +3 dBm0 (+0.5, -0.5dB)
Total Signal-to-Noise Ratio: Compliant with the ITU G.713 template as shown in the figure
Signal/Total Distortion vs. Input Level for Analog (Four-Wire to Four-Wire or Two-Wire to Two-Wire) Channels
Two-Wire/Four-Wire Interface Specifications:
Companding Law: A-law per ITU G.711
Impedance: Balanced 600Ω
Audio Frequency Range: 300Hz – 3400Hz
Return Loss: Not less than 18dB
8. Power consumption
Whole device power consumption: <35W
9. Working environment
Operating Temperature: 0～45℃
Relative Humidity: ≤95% (at 25℃)
Atmospheric Pressure: 70～106Kpa
Product Specification
Product name | 8E1 and 32 Telephone and 4 1000M Ethernet integrated services access product |
Product function description | Transmits 8 E1 interfaces + 32 telephone channels (optional magnetoelectric telephone, hotline telephone, two-wire/four-wire audio, data, etc.) + 4 channels logically isolated 1000M Ethernet over optical fiber; 1U rack-mounted equipment; the telephone interfaces are RJ45 (1 port corresponds to 1 telephone channel, pin assignment: 4/5). |
Port description | 1 optical interface (optical port rate: 1.25G, optional single-fiber or dual-fiber transmission, optical interface is FC or SC); 8E1 interfaces (BNC); 32 telephone interfaces (RJ45); 4 channels of 1000M Ethernet (Shared bandwidth or logical isolated). |
Power | AC220V or DC48V single power, or AC220V + DC48V dual powers |
Dimension | 485(W)*205(D)*45(H) mm |
Weight | 4.3kg/unit |