1. STM-1 ADM and TM

2. STM-1 CPE
Overview
OPCOM and OPCOM are carrier-class design
SDH CPE.
High capacity of E1 or Ethernet service at low cost
Two STM-1 optical interfaces for up link, with options of either
two individual path or 1+1 path protection.
To be used as TM or ADM equipment
Support point-to-point, chain and ring network topology

3. OPCOM
Construction
OPCOM is compact 1U standalone STM-1
ADM and TM
Provide flexibility E1 and Ethernet services access
Uplink: two STM-1 optical interfaces
Downlink: fixed 16E1 interfaces and one expansion
slot
Optional 4/8 Fast Ethernet interfaces module or
16E1 interfaces module for the expansion slot

4. OPCOM
Features
Provide the capability of VC12 unblock cross-connect in 126X126,
together with 1+1 channel protection
The protect switching time is within 50ms, ensuring the reliability of transmission
The Ethernet supports GFP, LAPS encapsulation, along with VCG/LCAS
All services are physical isolation, which delivers security at private leased line service
SNMP/Telnet/Console management method

5. OPCOM
Features
OPCOM is compact 1U standalone STM-1 Multiplexer
Uplink: two STM-1 optical or electrical interfaces
Downlink: fixed 63 E1 interfaces
Provide the capability of VC12 unblock
cross connect in 126X126, together with 1+1 low
level channel protection
The protect switching time should be within 50ms,
ensuring the reliability of transmission
SNMP/Telnet/Console management method

6. Multi-Service Access Platform
Overview
OPCOM3500 SDH multi-service access platform is aggregation equipment, which is designed for traditional TDM service and broad band IP data service of MAN.
It can meet carrier and customer’s requirement of different class bandwidth and multi-service access.

7. OPCOM3500
Construction
OPCOM3500 adopts rack design, including chassis, fans board,
plug board and power supply board.
For the plug board, including following parts:
Network management board
OPCOM3500-NMS
Aggregate board
OPCOM3500-STM1-M
Tributary board
OPCOM x2
OPCOM E1
OPCOM3500-NMS and OPCOM3500-STM1-M compose the basic system of OPCOM3500.

8. Network Management Board
OPCOM3500 Slot Description
Network Management Board
Power
Supply
Board
Power
Supply
Board
Aggregate Board

9. OPCOM3500 Features Provide two STM-1 uplink for line side
Provide no-block cross connection of 16×16 VC4 or 1008×1008 VC12
Provide VC12 cross connection between all tributary units and aggregate unit
OPCOM3500 chassis provides 15 slots, including 2 slots of power supply, 1 slot of
network management, the left 12 slots are design for customer service.
Provide one 2Mbit and one 2MHz clock output

10. OPCOM3500-NMS OPCOM3500-NMS is network management
SNMP network management port
OPCOM3500-NMS is network management
module of OPCOM3500 system
1) It communicates with network management
software of upper layer and accepts management
of upper layer.
2) It can manage OPCOM3500 equipment, and
corresponding remote equipment.
3) Provide clock for whole OPCOM3500 system.
4) Support on-line upgrade of system and tributary
board.
Console port
RS232 control channel
2M clock input
2M clock output

11. OPCOM3500-STM1-M OPCOM3500-STM1-M module is aggregate unit of
OPCOM3500 system
1) Provide two STM-1 optical interfaces, with options
of either two individual path or 1+1 path protection
2) Embedded cross module of 16x16 VC4 or 48x48
TU3 or 1008x1008 TU12
3) Support software on-line up-grade of local and
remote equipment

12. OPCOM x2
OPCOM X2 is tributary unit of dual PDH Mux, it’s
embedded two individual PDH module, it can communicate with
remote PDH equipment through two PDH optical link.
Capability of each PDH module is 8 links E1.
PDH optical interface supports ALS function.
Provide local and remote loop-back function of E1
Indicator can indicate local and remote alarm
Support on-line software up-grade

13. OPCOM3500-16E1 OPCOM3500-16E1 is E1 service unit of OPCOM3500,
it can provide 16 unbalanced E1 interfaces, and it
can be mapped in SDH frame through aggregate
unit of OPCOM3500
Provide complete alarm, performance monitor.

14. Thank you!