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Product Advantage
Adopting modular design, flexible structure, high integration, stable and reliable equipment performance
Supports a variety of telephone interfaces: FXS, FXO, magnet phone, hotline interface, adapting to various voice access requirements
Supports the transmission of two-wire/four-wire audio signals to meet different voice application scenarios
Supports 10/100M Ethernet signal transmission, suitable for data communication and network access
Supports RS232 serial port data transmission, compatible with industrial control, monitoring and other equipment access
The group provides 2 E1 interfaces, supports 1+1 hot backup and ADM self-healing ring network networking, and improves network reliability
2 E1 can be bundled for Ethernet transmission, with a maximum bandwidth of 3.84Mbps, meeting higher data rate requirements
Supports caller ID function, suitable for telephone switchboards, voice systems and other applications
Supports AC 220V and DC -48V dual power input, flexible power supply, reliable operation
Provides complete status indication and alarm display, convenient for user maintenance and troubleshooting
Technical Parameters
◆ E1 interface
Interface code: HDB3 code
Line rate:2.048Mbp/s±50ppm
Interface impedance: 75Ω / unbalanced, 120Ω / balanced
Physical interface: BNC(75Ω)/RJ45(120Ω)
Standard: ITU-T G.703, G.704
Jitter characteristics: Meet G.704 and G.823
Interface: BNC/RJ45
◆ FXS/FXO interface
Impedance: 200Ω+680Ω||0.1μF (FXO)
200Ω+560Ω||0.1μF (FXS)
Frequency characteristics: 300~ 3400Hz(-0.6~+3dB)
Physical interface: RJ45
◆ Magnetic telephone interface
Impedance: 600Ω
Frequency characteristics: 300~ 3400Hz(-0.6~+3dB)
Ring current: 75V (55~90V), frequency: 25Hz (20~30Hz)
◆ Ethernet interface
Support IEEE 802.3/802.3u
Support 10/100M adaptive, full-duplex, half-duplex adaptive
Support cross-line and straight-through line adaptive
Transmission rate: N*64Kb/S (N=1~60)
Physical interface: RJ45
◆ RS232 interface
Rate: 300~ 19200b/S
Physical interface: RJ45
◆ Voice coding and signaling method
16 time slot signaling, compliant with ITU-T G.732
A-rate PCM coding, 64Kb/S per voice channel, compliant with ITU-T G.711
◆ Power supply
-48V DC (-36~-72V) or 220V AC (165~265V) optional
Power consumption of the whole machine: less than 30W
◆ Mechanical structure
19-inch 1U
Product Uses
Military communication system: used for unified voice and data transmission between remote camps and command headquarters to ensure communication security and efficiency.
Power dispatching network: realize stable voice and data communication between substations and dispatching centers, and improve the intelligence level of power systems.
Public security network: supports multi-service communication transmission of public security command systems, and meets the comprehensive business needs of nodes such as duty rooms and monitoring points.
Government and enterprise remote access: provides a cross-regional unified voice and data access platform for government agencies, enterprises and institutions.
FAQ
Q1: What types of business signals does the XT series PCM multiplexing equipment support?
A1: Supports FXS, FXO voice interfaces, RS232 serial port data, 10/100M Ethernet and other business signals.
Q2: How to choose to use 1 or 2 E1 channels?
A2: If the business volume is small or for point-to-point transmission, use 1 E1; if you need active-standby redundancy or higher bandwidth transmission, you can choose 2 E1 channels.
Q3: Does the device support remote management?
A3: It supports local or remote management, which is convenient for maintenance personnel to remotely view the status or perform troubleshooting.
Q4: Is it suitable for operation in harsh environments?
A4: The XT series adopts industrial-grade design and can work stably in a wide temperature and voltage range, suitable for outdoor machine rooms or industrial field environments.
Q5: Is it compatible with third-party E1 devices?
A5: It supports the standard G.703 E1 interface protocol, has good compatibility, and can be connected with a variety of E1 access devices.
Selection Guide
Model | E1 Interface | Ethernet Interface | Telephone Interface | Other Interfaces | Power Supply and Form Factor |
PCM-30A | 2 Ports, Supports 1+1 Backup and ADM Mode, Supports Bundled Transmission for Ethernet | 2 Ports, Switched, Supports VLAN Isolation, Maximum Ethernet Bandwidth 3.968Mb/s | Supports 30 Ports, FXS/FXO, Magnetic, Hotline, etc., Supports 2-wire/4-wire Audio | Supports RS232 Asynchronous Data | AC/DC/Dual Power, 19-inch 1U |