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The MP128 model is a high-speed base-band modem used in DDN, X.25 network and frame-relay network. The MP128E and MP128ES are desk type, and MP128C is card type that inserts into the standard 19-inch 4U Maipu intelligent chassis.
The modem:
- Transmits up to 6.5km on 0.4mm copper wire
- Provides scalable network management
- Offers base-band modem compatibility
- Reads running configuration from central settings

MP128E
Key Features
- Long-distance communication
- Transmits up to 6.5km on 0.4mm copper wire
- Transmits up to 8.5km on 0.5mm copper wire
- Advanced network management
- Manages network via Maipu Access Manager with Chinese menu graphical interface
- Convenient configuration
- Smart configuration of DIP-switch. It controls parameters and working mode status via customer end
- Supports V.24 and V.35 interfaces
- Configures V.24 and V.25 via buttons, and there is no need to change circuit modules. MP128ES provides only V.35 interface.
- Loop back test
- Configures a variety of loop back modes via button
- Good compatibility
- MP128 can be compatible with Tainet, RAD, LOOP and JNA -- same type base-band modems
- Software download
- Downloads upgrade product via local or remote software
Technical Specifications
Performance index
- DTE rate
- Synchronization: 128Kbps, 64Kbps, 38.4Kbps, 19.2Kbps, 9.6Kbps, 4.8Kbps, 2.4Kbps
- Asynchrony: 115.2Kbps, 57.6Kbps, 38.4Kbps, 19.2Kbps, 9.6Kbps, 4.8Kbps, 2.4Kbps
- MP128S only supports synchronic 128Kbps and 64Kbps
- DTE interface
- V.24V.35(MP128ES only supports V.35)
- Wire interface
- Two cores twisted-pair, RJ45 slot
- Wire code
- Wire impedance
- Communication distance
- Synchronized rate: 128Kbps
- 6.5Km on 0.4mm; 8.5Km on 0.5mm
- Timer
- LT: Internal or external timer
- NT: Loop back or external timer
- Testing
- AL (local simulated loop back, DL (digital loop back), RDL (remote digital loop back) testing
Physical index
MP128E, MP128S
Dimension: H x W x H: 228mm x 148mm x 35mm
Weight: About 0.52Kg
MP128C
Dimension: H x W x H: 222mm x 173mm x 20mm
Weight: About 0.23Kg
Environmental Index
Temperature: 045C
Humidity: 5~95%
Power supply index
MP128E, MP128ES
Input current (AC): 220V
Power consumption: 2W
MP128C
+5V
Power consumption: About 2W
DC: -48V/ AC: 220V
Dual power supply hot backup