LNK E1 30PCM Voice Multiplexer SNMP Network Single PCB Design
Machine
LNK-E1-30PCM Voice Multiplexer
HDMI Fiber Extender Advantages
· Based on self -copyright IC
· The machine is single PCB design
· Can monitor the remote alarm status
· E1 interface comply with G.703, adopts digital clock recovery and
smooth phase-lock technology
· Provide 2 expansion interfaces(AUX1/2), you can extend 1-4Channel
asynchronous data, such as RS232/RS485/RS422/Manchester code;
1-8Channel switch , two/four line audio and so on
· 1-30Channel voice access, supports caller ID feature and reverse
polarity billing functions
· Support various sites mutual number allocation function
· Voice port supports FXO and FXS port, EM2/4 audio interface, FXO
port docking with program-controlled switchboard, FXS port
connected to the user's telephone
· Desktop device supports independent SNMP network management and
optical multiplexer network management cascade (optional)
· Have LED when the device is power-off or E1 line is broken or
lose signal
· Can monitor the temperature and voltage (network management
platform)
· Can monitor the remote equipment temperature and voltage (network
management platform)
· AC 220V, DC-48V, DC24V can be optional
Technical Indexes
| Parameter | Specification |
| FXS Phone Interface |
| Ring frequency | 75V |
| Maximum transmission distance | 25HZ |
| Two-line Impedance | 600 Ohm (pick up) |
| Return loss | 40 dB |
| FXO Switch Interface |
| Ring detect voltage | 35V |
| Ring detection frequency | 40Km |
| Transmission distance | 17HZ-60H |
| Two-line Impedance | 600 Ohm (pick up) |
| Transmitting power | -9dBm (Min) ~-8dBm (Max) |
| Return loss | 40 db |
| Link budget | 18dBm |
| E1 Interface |
| Interface Standard | comply with protocol G.703 |
| Interface Rate | 2048Kbps±50ppm |
| Interface Code | HDB3 |
| E1 Impedance: | 75Ω (unbalance), 120Ω (balance) |
| Jitter tolerance | In accord with protocol G.742 and G.823 |
| Allowed Attenuation | 0~6dBm |
| Power |
| Power supply | AC180V ~ 260V；DC –48V；DC +24V |
| Power consumption | ≤7W |
| Dimension |
| Product size | 19 inch 1U 485X138X44mm(WXDXH) |
| Simple packaging | 522X198X82mm(WXDXH) |
| Piece weight | 3KG |
| Working environment |
| Working temperature | -10°C ~ 50°C |
| Working Humidity | 5%~95 % (no condensation) |
| Storage temperature | -40°C ~ 80°C |
| Storage Humidity | 5%~95 % (no condensation) |
| Dimension |
| 19 inch 1U | 483(Length)X200(Width)X44(height)mm |
Overview
This device is a kind of developed point to point transmission
equipment based on our company E1 line transmission the special-use
VLSI. It has alarm function. 1-30Channel voice and 1-4 Channel
serial data interfaces can be optional. Device can be built-in SNMP
module, for SNMP management. The device circuit is digital circuit.
The working is reliable, stable, and low power consumption, high
integration, small size, ease of installation and maintenance.
