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Front Panel
A: Fiber port. Default with dual fiber, single mode, 40km, 1310nm, FC
B: 4xEthernet port with VLAN
C: RS232 port. One RJ45 ports for 2xRS232.

Rear Panel
D: 8xFXS/FXO phone. The connectors are RJ11.
E: AC, DC power
Technical Specifications
Optical | Default: FC, dual fiber, single mode, 40km, 1310nm. Optical module is option when in order. |
Rate: 150Mbps | |
Phone (hotline or FXO/FXS) | Connector: RJ11 |
Impedance: 200Ω+680Ω 0.1uF | |
Frequency character: 300-3400Hz(-0.6-+3dB) | |
Weighted noise: ≤-65dBmop | |
Interface loop resistance: ≤1800Ω | |
Ethernet | 4 Ethernet |
Connector: RJ45 | |
Share 100M | |
RS232 | Maximum 2 channel RS232 |
Connector: 1xRJ45 | |
Transmitting output voltage: ±15V | |
Receiving input voltage: ±15V | |
The maximum rate of transmitting and receiving: 115.2Kbps | |
Power | AC, DC or AC and DC power redundancy option |
Environment | Working temperature: 0 ~ 70°C |
Relative humidity: ≤90%(25°C) |

| Model | Description |
| HM-PN04 | 4channel FXO/FXS+4Ethernet PDH multiplexer |
| HM-PN08 | 8channel FXO/FXS+4Ethernet PDH multiplexer |
| HM-PN16 | 16channel FXO/FXS+4Ethernet PDH multiplexer |
| HM-PN32 | 32channel FXO/FXS+4Ethernet PDH multiplexer |


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