Voice Broadband Optical Multiplexer
User
Manual
9
Interface Connector: Q9 (75Ω)
3.6 Ethernet Interface
Ethernet Interface Rate: 10M/100M adaptive, 10M
half-duplex, 10M full-duplex, 100 M half-duplex or 100M
full-duplex optional
Compatible Portocol: IEEE802.3
Transmission Rate: 100M
3.7 Serial Interface (RS232/RS485/RS422) Data Interface
Transmission Rate: ≤115.2kbps Adaptive
Transmission Type: Asynchronous
Interface Connector: RJ45
3.8 FXO (FXS) Telephone Interface
Line Property: Comply with the
Technical specifications for
telephone exchange equipment by Ministry of Posts and
Telecommunications
Voice encoding: PCM encoding, 64Kbps per line
Relay Interface (FXO): Connected to switch
Second-tier AC input impedance:
200+680//104Ω
(three
components)
Ringing voltage:
35～90V
Ringing frequency: 17 ~ 60 HZ
Return Loss:
30~40 db
User Interface (FXS): connect users’ telephone
Second-tier AC input impedance:
200+680//104Ω
(three
components)
Loop Resistance of Subscriber Line:
≥1KΩ
(including the
phone)
Ringing voltage-peak:
60~80V
Ringing frequency: 17 ~ 60 HZ
Feed voltage: 48 V
Return Loss:
30~40 db
Interface type: RJ45
