Modem quang ZHT 8E1 + 4FE + RS232 + Console PDH FOM-240

Features

1. 1+1 optical circuit standby with rate of 150Mbps.

2. HDB3 E1 line code. E1 jitter tolerance, transfer characteristics, output jitter is fully complied with ITU-T G.703, G.823, G.742.

3. 4 Ethernet ports fully support VLAN, auto-negotiation, full/half duplex, auto adapt 10/100M.

4. Perfect alarm function. Be able to supervise the remote equipment status.

5. Order wire phone function by normal phone.

6. Support console RS232 or SNMP&WEB network management (optional)

7. Support 2 RS232 data channel with the rate of 115.2Kbps.

8.Single board design, 1U, 19inch.

9. 1+1 standby power supply. The equipment can be with 2 AC220V, 2 DC-48V or one AC220V and one DC-48V.

Technical Specification

Optical Port

1. Line rate: 155Mbps

2. Line code: Scrambled NRZ

3. Wavelength: 1310nm(typical) 1550nm(optional)

4. Optical source: LD      ( input: -8dBm ~ -34dBm)

( output: -15dBm ~ -8dBm)

Name	Option	Default
Transmission mode	Single-mode/Multi-mode	Single-mode
Module type	Single-fiber/Dual-fiber	Dual-fiber
Interface type	SC/FC/ST	SC
Transmission distance	2KM/40KM/60KM/120KM	40KM

E1 interface

1. Rate: 2.048Mbps, ±50ppm tolerance available

2. Impedance: 75Ω unbalanced or 120 Ω balanced optional

3. HDB3 coding: comply with ITU-T G.703

4. Jitter input tolerance comply with ITU-T G. 823

5. Jitter transfer character complies with ITU-T G.742

Ethernet interface

1. Compliant with: IEEE802.3

2. Rate:  10/100Mbps Full/Half duplex auto-negotiation Physical connector: RJ45

3. MDI/MDI-x auto-negotiation

4. Ethernet port:  4 ports

5. MAC address table capability: 1024 k

6. MAC address table aging time: Very short

7. The minimum frame length: 64 bytes

8. The maximum frame length: 1916 bytes

9. Support VLAN

Power

1. Input power voltage: DC-48V, -36V~ -72V (DC) tolerance

2. Input power voltage: AC220V, 165V~264V tolerance

3. Power consumption: less than 10W

Worrking environment

1. Temperature: -10ºC— 60 ºC

2. Humidity: 95%, non condensing

Dimension and weight

1. Length × Height × Width: 483mm×44mm×200mm

2. Weight: 2.5kg