User guide

OMNIScanner User Guide
A - 4
OMNIFiber Test Functions
· Multi-mode Fiber: Length, Propagation Delay, Loss
· Single-mode Fiber: Propagation Delay, Loss
Transmission Performance Measurement Method
All cabling transmission performance measurements (NEXT, RL, Attenua-
tion, and ELFEXT) are implemented using swept frequency domain, vector,
digital signal processing measurement methods to ensure accurate,
repeatable results.
Transmission Performance Measurement Parameters
The accuracy of the RF transmission performance measurements is
calculated in accordance with error models documented in related TIA
documents. OMNI Scanner is designed to exceed Level III accuracy
requirements. The following table provides specifications for important
instrument parameters relating to the measurement accuracy models.
Instrument Parameter @ 100 MHz @ 200 MHz @ 300 MHz
Residual NEXT > 105 dB > 105 dB > 100 dB
Noise Floor > 100 dB 100 dB > 95 dB
Detector Accuracy 0.5 dB 0.5 dB 0.5 dB
Output Signal Balance 45 dB 39 dB 35 dB
Common Mode Rejection 45 dB 39 dB 35 dB
Port Match Error 0.1 dB 0.2 dB 0.5 dB
Wire Map
· Finds miswires, opens, shorts, crossed and split pairs and presents
results in a schematic format
· Includes shield test if connected
· Uses OMNI Remote for complete mapping of wiring at both ends of the
cable
NEXT
· Test all six pair combinations from both directions using OMNIRemote
· Frequency Range: 1 to 300 MHz
· Dynamic Range: >100dB
· Measurement Accuracy: Calculated per TIA error model
NEXT Accuracy Table
Cat 5 Link Limit @ 100 MHz 0.8 dB
Cat 6 (Draft Link Limit @ 200 MHz) 1.0 dB
Cat 7 Link limit @ 300 MHz 1.6 dB