STM-1, 63 E1 (Optical / Electrical) Add-Drop SDH Multiplexer
Product Overview:
Valiant’s STM-1 63 E1 (Optical / Electrical) Add-Drop SDH Multiplexer unit is a modular platform unit with two 155.52Mbps optical / electrical interfaces, which may be used in a point-to-point, chain or ring application to provide an ultra-compact, cost effective and flexible service platform.
63xE1 interfaces (120 Ohms [RJ-45] and 75 Ohms [BNC]) options along with Engineering Order Wire is available. The user removable / replaceable STM-1 Optical / Electrical interface option makes it easy to meet various and changing user requirements. Valiant’s STM-1(SDH) Transmission Equipment provides full capability to cross-connect at E1 level between all tributaries.
The equipment can be used as Terminal Multiplexer (TM) or an Add-Drop-Multiplexer (ADM) to build a point-to-point, ring and chain (add-drop) transmission network.
Network Application
Point to point network application diagram
Chain network application diagram
Ring network application diagram
. Supports upto 63 E1s
. 1U height, 19-Inch standard rack-mountable chassis
. Service interfaces
. 2 x STM-1 optical interfaces, MSA compliant SFP (pluggable) optical module (LC connector) based design, which supports onsite optical port replacement
. 2 x STM-1 electrical interfaces, SFP electrical module (Mini BNC connector) Optional
. Maximum 63 E1 interfaces compliant with ITU-T G.703
. 120 Ohms E1 and 75 Ohms E1 interfaces options available
. Provides complete diagnostics facilities to the user for monitoring optical ports and provide reading of optical
transmit power, optical receive power, laser temperature, bias current in voltage alarms etc.
. Performance Monitoring and Alarms – Error counts for B1, B2, B3
. Performance Analysis – Error Seconds (ES), Several Error Seconds (SES), Unavailable seconds (UAS), Higher Order Virtual Container – Remote Error Indication (HOVC-REI), Higher Order Virtual Container – Pointer Justification Event (HOVC-PJE)
. Management and Maintenance interfaces
. 10/100BaseT Ethernet management interface
. RS232 serial management interface
. Remote (Telnet) management interface
. SNMP V2 Monitoring
. Engineering Order Wire (EOW) interface (RJ-11)
. NMS (Network Management System) for monitoring multiple units from a single / central location
. Timing mode
. Synchronization with STM-1 line timing
. Synchronization with timing from any of the E1 interfaces
. External timing source option – 120 Ohms 2MBps (External Bits Clock)
. External timing source – 120 Ohms 2MHz (External TTL Clock) – Factory Configurable
. Internal Clock – ITU-T G.813 internal oscillator (Stratum 3)
. The timing source can be auto-switched according to default or operator programmed settings
. Supports 1+1 Line Protection and Automatic Protection Switching (APS) with less than 50ms recovery
. All 63 VC12s can be mapped (east or west) in 1+1 protection mode
. Out of 63 VC12s, 21 VC12s (43-63) can be mapped to either direction (east or west) without protection(1+0)
. Supports point-to-point, ring and chain topology
. Local management and network-based management via a unified platform
. Supports Remote Power Down Detection and Auto Laser Shutdown
. Supports STM-1 and E1 loop-back for troubleshooting
. 850nm multi-Mode, 1310nm Single Mode and 1550nm Single Mode optical interface options offered
. Easy to operate
. Redundant power supply card options AC+DC, DC+DC and AC+AC
. 110V AC – 240V AC (50/60 Hz) power options available
. -48VDC power option available
. Power consumption less than 20W.
. Windows XP based Graphical User Interface (GUI)
. Windows 7 based Graphical User Interface (GUI)
. Power Indicator
. Current Status (integrity and activity) Indicator
. Urgent Alarm Indicator
. Minor Alarm Indicator
. Optical Signal Loss Alarm Indicator
. Remote Device Power-down Indicator
. Auto Laser Shutdown (ALS) Indicator
. Engineering Order-Wire (EOW) Indicator
. Dry contact via 9-pin, D-type male connector
. Buzzer Alarm
. SNMP Diagnostic and Monitoring.
