• realizes long-distance monitoring of this end equipment to the far-end equipment (two-row indicating lamp, upper row indicating local status, lower row indicating far-end status);
• based on self-copyright IC;
• overall rate of V.35 and Ethernet is 2048K, Ethernet rate will be allocated automatically after V.35 rate is set;
• realizes automatic rate following of remote-end equipment ordered by local-end equipment; Ethernet port
• provides 4 clock types: E1 master clock, E1 line clock, V.35 master clock, V.35 external clock;
• provides 3 kinds of loop-return function, namely E1 self-looping at local end, V.35/Ethernet self-looping at local end, and V.35/Ethernet being ordered to self-loop at remote end;
• has the function (PATT) of pseudo-random code testing, convenient for opening of the circuit, and can be used as a 2M error code instrument;
• supports 75Ω unbalanced and 120Ω balanced impedance at the same time;  
• V.35 supports hot plugging and connection with DTE and DCE equipment;
• Ethernet interface 10/100M, half/full duplex self adaptable, supporting VLAN and AUTO-MDIX (crossed line and straightly connected line self-adaptable);
• has self-reset function of Ethernet monitoring, equipment will not be stacked;

E1 interface:     
Interface standard: Conforms to G.703 standard
Code: HDB3 code
Rate:N*64K(N=1~32)
Interface impedance: 75Ω (non- balanced), 120Ω (balanced)
Connecter: BNC (75 Ω), RJ45 (120 Ω)
Vibration characteristic: Satisfies G.742 and G.823 standard
Clock type: internal-clock, route clock

10/100BaseT port:
Interface rate: 10/100Mbps
Duplex: half/full duplex self-adaptable
Interface characteristic: supports IEEE802.3, IEEE802.1Q (VLAN)
MAC address table: can learn 4096 MAC addresses
Ethernet overall slow storage (buffer): 64MBits SDRAM
Physical interface: RJ45

V.35 interface:
Interface speed: Nx64K
Connector:M34 female
Interface characteristic：satisfies ITU-T V.35standard