INFORMATION
                    Functions
The voice over fiber multiplexer is point to point fiber transmitting equipment, which realizes 1~8 channel voice (FXO, FXS) POTs phone over fiber and  4 E1,4*100M Ethernet, 4 channel RS232 for option. Its merits include complete warning function, high integration, low consumption, stable performance and convenient usage.
 Features 
n         provides 4 channel E1/ G.703 for option;
n         provides 1 channel 100M (liner) Ethernet ports for option
n         provides 8 channel voice port, FXO and FXS for option; also for 2/4 wire E&M
n         provides 4 channel RS232, rate supports 300-15200 bps for option;
n         Ethernet port 10/100M, full/half duplex auto-adaptable and supports VLAN;
n         Ethernet port supports AUTO-MDIX (twisted cable and straight cable auto-adaptable);
n         1-8 channel voice connection, supports calling indication;
n         Configuration: point to point;
n         Voice port supports O port and S port or E&M interface for order, O port connects switch and S port connects user’s phone;
n         Optical interface supports SC/FC interface and supports single fiber interface
Optical interface     ●  Optical wavelength: single mode 1310nm/1550nm
●  Fiber: single fiber or double fiber for option
●  Transmitting consumption: -9dBm/-5dBm 
●  Transmission range: 0-50Km/120Km for option
●  Optical interface: SC/FC 
●  Receiving and dispatching module: >-6dBm 
●  Optical receiver receiving sensitivity <-36 dBm (BER<10-11) 
●  Fiber circuit code: NRZ code
Ethernet Interface
●  Rate: 10/100M, full/duplex auto-negotiation
●  Protocol: Support IEEE 802.3, IEEE 802.1Q (VLAN)
●  MAC Address Entiries: 4096 Entiries
●  Total Memory Sizes: 64MBits SDRAM
●  Physical interface: RJ45, support AUTO-MDIX


 Voice Phone Interface:
FXS: 
  Alarm voltage:     75V
  Alarmf requency:    25HZ
  2 line input impedance:  600Ω (hanging off)
  Wastage:         40db
FXO:
   Alarm detecting voltage:  35V
   Alarm detecting frequency: 17HZ-60HZ
   2 line input impedance:    600Ω (hanging off)
   Wastage:               40db
    E wire:                                                
Max current: 22mA                          
Saturation voltage: 3V                        
Dial speed: >20pps                         
M wire:
steady current: 7 mA
min test current: 5 mA
      pluse dial recognition: >20pps
 RS232 port
Rate: 300-115.2Kbps auto-adaptable (Asynchronous) 
    Interface characteristic: satisfies ITU-T V.24 
Dimension(19inch rackmount)                   
2       433mm(L)
2       138mm(W)
2        44mm(H)
Power supply                         
working voltage range wide, good         
anti-disturb and Isolation, work stable      
option I – DC-48V,range DC-36V~DC-72C    
option II – AC220V,range AC165V~AC240V
Power Consumption:    <=3 Watts 
Environment condition                   
Operating temperature:  0C~+50 C         
Storage temperature:   -20 C~+70 C
Relative temperature:95% (uncondensed)
Related Link:
1. Questions about POTS(fxs/fxo) phone over fiber multiplexer
2. Can POTs Fiber Multiplexer support DSL Transmission?
FAQ:
Question: Can the Fiber Multiplexer be configured as 4Voice+4ETH+4RS232 with SNMP? If can, does the device have VLAN dip switch? 
Answer: Yes, the Fiber Multiplexer can be configured as 4Voice+4ETH+4RS232 with SNMP. But the device doesn't have VLAN dip switch. VLAN cannot be set through SNMP, only can be set through console management.
Video:
 Phone voice over fiber multiplexer installation guide
 
                    
                    
                    
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