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Sigma:
Synchronous Digital Hierarchy
(SDH)
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Exartech Sigma is a compact STM-1/STM-4
add/drop multiplexer,
specially
suitable for the utilization
in extending networks to the edge by providing
cost-effective multi-service
access and delivering more revenue-generating services
to subscribers. It transports TDM (Time Division
Multiplexing), Ethernet and IP (Internet Protocol)
over existing SDH (Synchronous Digital Hierarchy)
network, and can be customized for the traffic demand,
in the access network, which is typical for
residential and business applications.
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Key Features:
Ø
Fully cross connection
Ø
Terminal Multiplexer (TM) and
Add/Drop Multiplexer (ADM) applications
Ø
Topology: Point to Point, Linear,
and Ring
Ø
Remote software downloadable
Ø
Support 1+1 Linear MSP (Multiplex Section Protection)
and (SNCP Sub-Network
connection Protection)
Ø
Friendly GUI (Graphic User
Interface) for OAM&P (Operation, Administration,Maintenance
and Provision)
Ø
Optional point to point EOW
(Engineering Order Wire) function
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Specification:
STM-4 Optical Interface:
Ø
Interface Type:
S4.1, L4.1,L4.2
Ø
Transmission Rate: 622.08M
Ø
Meet ITU-T G.957/G.958 requirements
STM-1 Optical Interface:
Ø
Interface Type: S1.1,L1.1,L1.2
Ø
Transmission Rate: 155.52M
Ø
Meet ITU-T G.957/G.958 requirements
STM-1 Electrical Interface:
Ø
Transmission Rate: 155.52M
Ø
AC impedance: 75 ohm
T3 (DS3) Interface:
Ø
Transmission Rate: 44.736M
Ø
AC impedance: 75 ohm
E3 Interface:
Ø
Transmission Rate: 34.368M
Ø
AC impedance: 75 ohm
E1 Interface:
Ø
Transmission Rate: 2.048M
Ø
AC impedance: Default 120ohm
; 75 ohm
for
option
T1 Interface:
Ø
Transmission Rate: 1.544M
Ø
AC impedance: 100 ohm
SHDSL Interface:
Ø
Line code: TC-PAM
Ø
Transmission Rate: up to 2.3M
Ø
AC impedance: 135 ohm
Ø
Meet ITU-T G.991.2 requirements
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Ethernet Interface:
Ø Meet IEEE 802.3 requirements
Ø 10/100 auto negotiation
Ø AC impedance: 100 ohm
Serial
Port
(Datacom) Interface:
Ø Interface: V.35
Ø
Data Rate: N x 64 K, N=1 ~ 32
Craft Interface:
Ø
Interface: RS-232C Asynchronous
NMS Interface:
Ø Interface 10/100Base-T
Power Supply:
Ø
DC: -48VDC
Ø AC: 110/220VAC @ 50/60Hz
Environmental Conditions:
Ø
Temperature:-10 ~ 60°C (operation)
Ø Humidity: 5 ~ 95% (RH)
EMI/EMC/Safety:
Ø EMI: FCC, Part 15, Sub
B (Class A)
Ø CISPR22 Class A
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