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PT-70 3294 DXC1/0 Digital Cross-connect Equipment
The PT-70 3294 DXC1/0 equipment is a new-generation digital cross-connect device that integrates SDH technology, PCM (64K service) technology and 64K digital cross-connect technology. All functions can be controlled via a unified network management platform.
The PT-70 3294 DXC1/0 equipment can provide multiple access modes simultaneously, including standard STM-1/4/16 optical access and E1 electrical access for uplink interfaces, and SDH access, PDH access, PCM access (including automatic telephony, magneto telephony, low-speed data, 2/4-wire EM audio, etc.) and Ethernet access for branch sides.
It can meet the access requirements for different bandwidths and various service interface types of private network users such as power distribution network intellectualization, industrial automation, transportation, railway and air traffic control, as well as major operator customers.
The equipment adopts fully domestic components to realize completely independent and controllable technology. The network management system supports domestic independent innovation platforms, adopts front-side card insertion and front-side cable outgoing for services, and is equipped with a built-in intelligent fan unit.
Ø Networking Capability
l Supports networking in forms of link, ring network, star network, multi-ring tangency, etc.
Ø Compatibility
l SDH interfaces: Compatible with standard SDH optical interfaces of any manufacturer
l PCM services: Compatible with PCM equipment of any manufacturer
Ø Uplink Modes
l SDH optical interface
l E1 interface
Ø Automatic Routing Switching
l When SDH optical interfaces and E1 interfaces are used for uplink simultaneously, it supports automatic switching of uplink interfaces for service protection, with a switching time ≤ 50ms.
Ø Redundant Configuration
l Supports 1+1 protection for redundant power supply panel configuration
l Supports 1+1 protection for redundant main control panel configuration
Ø System Functions
l Supports multi-platform scheduling, enabling simultaneous operations, and supports one-way/two-way audio transmission, call testing, three-party call, monitoring, user ringing, etc.
l Supports 64K digital gain adjustment function, which can adjust the level of any 64K channel in the device with an adjustment range of -20dB ~ 6dB and a step of 0.5dB.
l Supports signaling translation function, online collection and automatic storage of TS16 signaling, and enables interconnection and intercommunication of PCM devices with different signaling formats from different manufacturers via the DXC device.
l Supports multiple monitoring methods such as direct Ethernet connection, DCC and 64K monitoring channel, realizing status monitoring, data configuration, fault diagnosis, maintenance testing, online software upgrade and operation log query, etc.
l Supports the management of subordinate PCM devices by the unified network management system through the 2M 64K monitoring channel, with a maximum of 294 subordinate PCM devices manageable.
l Supports 1+1 protection for cross-connect panels, 1+1 backup for power supply, 1+1 protection between boards and ports of E1/STM-1 interfaces (fault switching time < 10ms), VC12-level service protection, dual external clock access protection and dispatching desk protection.
l Built-in bit error tester function: capable of conducting bit error tests on any E1, any VC12 and any 64K channel, and supporting simultaneous startup of 4-channel 64K bit error testers.
l Customizable special interfaces.
Ø Network Management Interface
l Ethernet interface
Ø Service Capacity
l System service slots: 14 slots with hot-swappable boards
l STM-16 SDH optical interface board: single board capacity of 1 optical port (20km by default), maximum 8 boards supported per device
l STM-4 SDH optical interface board: single board capacity of 4 optical ports (20km by default), maximum 32 boards supported per device
l STM-1 SDH optical interface board: single board capacity of 4 optical ports (40km by default), maximum 32 boards supported per device
l E1 interface board: single board capacity of 21 channels, maximum 294 channels supported per device
l The system supports a 252-channel E1 64K full cross-connect matrix.
ØSystem Structure
l Structure type: Standard 19-inch 3U rack-mount
l Card-type installation: 2 power supply board slots, 2 main control board slots, 1 network management auxiliary board slot, 14 service board slots
| Optical Transmission Interfaces |
Optical port types: S1.1/L1.1/L1.2, S4.1/L4.1/L4.2, S16.1/L16.1/L16.2 Optical wavelengths: 1550nm or 1310nm Optical port levels: STM-1, STM-4, STM-16 |
| E1 Interface |
Bit rate: 2.048Mbps ±50ppm Code type: HDB3 code, G.703 standard Input impedance: 75Ω or 120Ω Frame structure: G.704, G.706 Jitter: G.742, G.823 |
| Power Supply |
Input voltage: -48Vdc or 220Vac Voltage range: -36Vdc ~ -72Vdc, 176Vac ~ 264Vac Power consumption: <360W |
| Operation Environment |
Working temperature: -10°C ~ 50°C Working humidity: 5% ~ 95 % (non-condensed) Storage temperature: -40°C ~ +80°C |
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