User manual

Raisecom Technology Co., Ltd
4
3. Parameters
3.1. Basic configuration
z Main circuit: 1 electrical or optical Ethernet interface, 4 or 8 E1 interfaces.
z Power supply: 90-264V/AC or -36V- -72V/DC
3.2. Ethernet interface parameters
3.2.1. Electrical Ethernet interface
z Speed: 10/100M auto-negotiation
z Connector: RJ-45
z IEEE802.3 compliant
z IEEE802.3x flow control
z AUTO-MDI/MDIX
3.2.2. Optical Ethernet interface
z Speed: 100M
z Connector: SC
3.3. E1 interface parameters
z HDLC-over-E1 encapsulation
z Adopt frame-interleave multiplexing to realize the transportation of Ethernet over
multiple E1
z E1 link sequence auto-sensing
z The maximum jitter of E1 in a transmission channel is +/-16ms
z 4M Bytes buffer for each Ethernet port to avoid packet loss
z Automatically adjust the E1 link capacity of transmission channel if one or more
E1 link fails
z For RC953-FE4E1 and RC953-FX4E1, there are both balanced and unbalanced
E1 connector (RJ-45 and BNC), you can use DIP-switch to choose the connector
type
z Bit rate: 2048Kbps±50ppm.
z Line coding: HDB3.
z 75ohm unbalanced or 120ohm balanced E1 connector.
z Electric characteristic: ITU-T G.703 compliant.
z Frame structure: ITU-T G.704 compliant
z Jitter: ITU-T G.823 compliant.