ZXMW IDU NR8120 NR8120A NR8120D Digital Microwave Radio Transmission System ODU NR8250 NR8150  ZXMW NR8120A NR8120D Product Description

ODU is the outdoor unit of the NR8000 series, it delivers power amplification and radio frequency (RF) conversion functions

There are two types of ODU, SRU and HRU:

SRU: Normal transmit power ODU, operates in the frequency range of 6-42 GHz (6/7/8/10/11/13/15/18/23/26/28/32/38/42 GHz), support QPSK to 2048 QAM [Note].

HRU: High transmit power ODU, operates in 6/7/8/11 GHz, support QPSK to 1024 QAM.

There are three important interfaces on the ODU:

RF in/out interface (waveguide type) for connecting to antenna

IF in/out interface (N type) for connecting to modem board

RSSI (Received Signal Strength Indication) interface (BNC type) for RF receiver signal monitoring

SRU for QPSK -1024QAM ODU and QPSK-2048QAM ODU are different.

ODU’s function units consist of IF signal input/output interface, RSSI interface, frequency converter, signal amplifier and low-noise amplifier. Only IF input and output interface, RSSI interface and RF interface are visible

Flexible ODU Mounting Methods

The ODU has two mounting methods: direct mounting and remote mounting. All the frequency sub-bands support these two mounting methods.

Mounting suggestions are described as following:

Direct mounting is suggested for single-polarized antenna:

For 1+0 configuration, the ODU is directly connected on antenna.

For 1+1 configuration, a combiner is used to connect the 2 ODUs together and then connected on the antenna.

For 2+0 configuration, if the 2 ODUs’ frequencies are covered by the same combiner, they might adopt direct mounting; otherwise, they should adopt remote mounting.

Remote mounting is usually used for dual-polarized antenna or big-size antenna. In this situation, waveguides are used to connect ODUs to antenna.

ZXMW SRU 15G-C-TH-1-0004-420M ODU QPSK-2048QAM
Tx:15201MHz-15349MHz
Rx:14781-MHz-14929MHz
T/R:420MHz
SUB BAND:C

ZXMW SRU 15G-A-TH-1-0004-420M ODU 
Tx:14291MHz-15068MHz
Rx:14501-MHz-14648MHz
T/R:420MHz
SUB BAND:A

ZXMW SRU 15G-A-TH-1-0003-420M ODU 
Tx:14291MHz-15068MHz
Rx:14501-MHz-14648MHz
T/R:420MHz
SUB BAND:A

ZXMW SRU 15G-D-TH-1-0003-420M ODU 
Tx:14291MHz-15040MHz
Rx:14501-MHz-14620MHz
T/R:420MHz
SUB BAND:D

ZXMW SRU 15G-A-TL-1-0003-420M ODU 
Tx:14501MHz-1648MHz
Rx:14921-MHz-15068MHz
T/R:420MHz
SUB BAND:A

ZXMW SRU 13G-C-TL-1-0004-266M ODU 
Tx:12835MHz-12919MHz
Rx:13101-MHz-13185MHz
T/R:266MHz
SUB BAND:C