Function
30 voice (anolag phone) over E1 provides conversion between ITU-T G.703 standard E1 and 1-30 voice, realize the long-distance extend of telephone line through E1 channel. BD-E1-MUX30 is a high-performance, multi-type long-range Ethernet bridge. Its small size, low cost and very appropriate to the cost-sensitive bridging applications.
Features
realizes long-distance monitoring of local device to the remote device based on self-copyright IC;
provides two clock types: E1 master clock, E1 line clock;
realize the automatically rate set of local device to remote device
has the function of pseudo-random code testing, convenient for opening of the circuit, and can be used as an error code instrument;
E1 supports 75Ω unbalanced and 120Ω balanced impedance at the same time;
Provides 30 voice channels, support calling indication
Voice port supports O port and S port, O port connects switch and S port connects user’s phone;
Support one ethernet port(option),realize 1*ethernet and 30channel phone over E1 multiplexer transmission;
E1 interface
Interface standard: Conforms to G.703 standard
Interface rate: 2048kbps
Code: HDB3
Interface impedance: 75Ω (unbalanced), 120Ω (balanced)
Connecter: BNC (75 Ω), RJ45 (120 Ω)
Vibration characteristic: Satisfies G.742 and G.823 standard
Clock type: internal-clock, line clock
FXS phone port
Ring voltage：75V
Ring frequency：25HZ
Two line input impedance：600Ω(hanging off)
Wastage：40 db
FXO switch port
Ring test voltage：35V
Ring test frequency：17HZ-60HZ
Two line input impedance：600Ω(hanging-off)
Wastage：40 db
