Origin	China
Model Number	RPM-150S8EM
Brand Name	HUMANITY

4/8E PDH is developed based on the VLSI chips. Relying on the advanced multiplexing technique, 4/8E PDH realizes 4/8 E1 and 100Mb/s fast Ethernet transmission with the function of Auto-Laser-Shutdown (ALS,optional).
Technology Characteristics
-> Transmits 4/8 E1 and one wire speed Ethernet
-> Line bit rate is 150Mb/s
-> Complies with ITU-T G.703 on interface and G.742, G.823 on jitter performance
-> Complies with ITU-T G.802.3 on Ethernet interface and supports auto-negotiation for 10M/100M and half/full duplex working mode
-> Supports VLAN and pause follow control for Ethernet
-> All necessary alarm functions, supervises the status of remote terminal
-> Supports E1 tributaries loop back for network fault diagnostics
-> Supplies standard order wire telephone
-> Supplies one customer RS232 data channel
-> Supplies RS232 for equipment management
-> AC 220 or DC-48 is optional
-> Single board design, 1U, and 19 Inch standard
Interface Parameters
Optical interface:
  -> Transmit Mode : Single/ Multi-mode
  -> Module : Single/Double Fiber
  -> Interface : FC/SC/ST
  -> Wavelength : 1310nm/1550nm
  -> Distance : 2Km/40Km/60Km/120Km
E1 interface:
  -> Bit rate : 2.048Mb/s , ±50ppm
  -> Impedance : 75Ω unbalanced(Declaration is needed if 120Ω balanced required)
  -> Coding: HDB3, according to ITU-T G.703
  -> Jitter: complies with ITU-T G.823 and G.742. Seeing appendix
Ethernet interface:
  -> 10M/100M through auto-negotiation
  -> Full/Half duplex through auto-negotiation
  -> Connector: RJ-45
  -> See appendix for Throughput, Packing error rat, Delay, and others
Order wire interface:
  -> Phone set: Standard 2-wire phone set
  -> Bandwidth: 64Kb/s
  -> Coding: PCM  
RS232 for management:
  -> Bit rate: 9600b/s
  -> Data width: 8bits
  -> Stop bit: 1bit
  -> Parity check bit: None
  -> Connector: DB9 (pin)
RS232 for customer data channel:
  -> Bit rate: ≤250kb/s
  -> Connector: DB9(pin)
General characteristics
-> Power : 220V±20% , -36 ~ -72V
-> Power Consumption : < 5W
-> Environment Temperature : 0??50??br />-> Size : 483×200×44mm
-> Net Weight : 2.5Kg