3.1. Basic configuration
●
Main circuit card: 16 E1 interfaces, two STM-1 interfaces;
●
Extension card: E1 sub card or EOS sub card;
●
E1 sub card provides 16 E1 interfaces and EOS sub card provides 4 or 8
Ethernet electrical interfaces;
● Power supply card: 220VAC, –48VDC or +24V;
●
Network management interface: CONSOLE interface, SNMP network
interface;
3.2. Optical interface parameters:
● Rate: 155.52Mb/s
● Line coding: NRZ
● Optical interface type: SC interface
3.3. E1 interface parameters:
● Rate: 2048Kb/s±50ppm
● Interface coding: HDB3 code
● Impedance: 75Ω/unbalance
● Physical electric feathers compliant with ITU-TG.703 standards;
● Jitter performance compliant with ITU-TG.823 standards;
● Input jitter compliant with ITU-TG.823 standards;
● Output jitter compliant with ITU-TG.783 standards;
3.4. EOS sub card Ethernet interface parameters:
●
Rate: 10/100 M auto-adapt
●
Interface type: RJ-45
●
Compliant with IEEE802.3 standard
●
Line sequence is the same with that of switch
●
Encapsulation supports LAPS, GFP
●
Support LCAS
3. Parameters
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