
BEIJING HUAHUAN ELECTRONICS Co., LTD.
H9MO-1641S User Guide V2.2
- P.
23
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6
System Specifications
6.1 Standards
compliance
Items Recommendations
STM-1, SDH Optical port
G.957, Framing structure G.707
E1, PDH Electrical port
G.703, Framing structure G.704
Interface
Ethernet port
IEEE802.3
E1/E3 G.823
System
Timing
SDH
G.813, G.825, YDN121-1999,
YDN123-1999
Network Management
G.744, G.784, G.831, Q.811, Q.812,
M.3000, M.3100, YDN037-1997,
YDN045-1997, YDN5080-99
Protection
G.841, G.842, YDN028-1997
6.2 Basic
characteristics
Operation mode:
Terminal Multiplexer (TM), and add/drop multiplexer (ADM)
Network topology:
Dual ring, mesh, chain and branch network
Group route capacity
:
Max. 3 x 155,520Kbit/s (STM-1) optic interface
Branch capacity
:
Max 16 x 2,048Kbit/s digital signal (E1), and 1 x 100Mbps Ethernet
6.3 Optical
interface
specifications
Transmission code rate:
155,520kbit/s (STM-1 G.957, G.707 framing)
Line code type:
scramble code NRZ
Connector:
FC socket
Optical sending
(average power)
:
S1.1 (1.3
µ
m
,
-15dBm ~ -8dBm) (standard)
L1.1 (1.3
µ
m, -5dBm ~ 0dBm) (optional)
Optical receiving
(sensitivity)
:
S1.1 (1.3
µ
m, better than -31dBm) (standard)
L1.1
(1.3
µ
m
,
better than -37dBm) (optional)
6.4 2Mbps interface electrical characteristics
Bit rate:
2048kbit/s
±
50ppm (G.703)
Code type:
HDB3
Nominal input impedance:
75
Ω
(non-balanced), CC4(
1.0/2.3
) coaxial socket
Or 120
Ω
(balanced), winding connection (optional)