Ultra High Density PCM Multiplexer

Product Introduction

The PT-50T 3519 PCM equipment features a standard 19-inch 3.5U high, plug-in card structure, with a total of 19 slots. The power disk occupies 2 slots, the main control disk occupies 2 slots, and the service disk occupies 15 slots. All boards support hot swapping, ensuring easy maintenance and upgrades.

The main control panel includes an Ethernet network management interface. The service panel slots can accommodate various types of interface boards, such as FXS (16/24 channels), FXO (16/24 channels), 4W E&M (8 channels), RS232 (16 channels), ISDN (2 channels), MAG (16 channels), hotline (16 channels), and V35 (8 channels). The PT-50T offers comprehensive network management functions and is compatible with Fengtai Communications Company’s network management protocols.

Features

Business Capacity

• The main control board supports 256*E1 processing capacity.
• Maximum crossover capability: any crossover of all 64K time slots of 256*E1.
• Maximum number of access users (including digital and analog users): 360.

Optional Service Access Types

• Supports FXO, FXS, 2/4W E&M, RS232, RS485, V35, G703, ETH, carrier, magnet, and other interfaces.
• Supports asynchronous or synchronous data, and N*64K configuration of data ports.
• Customizable special interfaces.
• Power supply options: 220VAC, -48VDC, or 220VAC plus -48VDC.

Special Features

• Compatible with PT-50T 1005 and PT-50T 2510 PCM equipment user boards, reducing spare parts and simplifying maintenance.
• The uplink channel supports mutual backup across multiple interfaces and protocol types.

Complete Range of Transmission Interfaces

• E1 interface
• PDH optical interface
• SDH optical interface
• TDM over IP interface
• HDSL interface
• PON interface

Product Specifications

E1 Interface

• Interface rate: 2.048Mbps ±50ppm
• Interface code type: HDB3 code, compliant with G.703 standard
• Interface impedance: 75Ω or 120Ω
• Frame structure: Compliant with ITU G.704, G.706
• Jitter characteristics: Meets G.742 and G.823 standards

Working Power Supply

• Input voltage: Standard -48VDC and 220VAC
• Voltage range: -36VDC to -72VDC, 176VAC to 264VAC
• Power consumption: <100W

Working Environment

• Operating temperature: -10°C to +50°C
• Working humidity: 5% to 95% (non-condensing)
• Storage temperature: -40°C to +80°C

Optical Interface

• Interface rate: 155Mbps ±50ppm
• Output optical power: ≥-15dBm
• Receiving sensitivity: ≤-35dBm
• Light wavelength: 1310nm/1550nm
• Optical interface connector: SFP/LC

Ethernet Interface

• Speed: 10/100Mbps adaptive, full/half duplex adaptive
• Protocol: IEEE802.3, IEEE802.1Q (VLAN)
• Connector: RJ45

Physical Structure

• Dimensions: 440mm x 276mm x 154mm
• Weight: 15kg

Networking Application

Figure 1: Peer-to-peer application

Figure 2: Point-to-multipoint transmission of voice and data