Microtest TSB-67 - 568A Annex E - Manual (Page 56)

2-Way Injector+ NEXT Measurement Performance Specifications
*Notes:
(1) NEXT accuracy is calculated at the Basic Link Limit (29.3 dB) per error model in TSB-67 A.3
(2) NEXT accuracy is calculated at the Channel Limit (27.1 dB) per error model in TSB-67 A.3
(3) Performance assumes a high performance modular 8 plug
Near-End Crosstalk (NEXT)
•
Tests all six pair combinations
•
Frequency range 0.7 to 100 MHz
•
Sweep Mode 0.1 MHz, 0.2 MHz, 0.5 MHz linear or TIA (user selectable)
•
Dynamic Range:
2-Way Injector+ : Measurement dynamic range > 75 dB
2-Way Injector : At least 15 dB greater than required by EIA/TIA 568A Annex E for
Category 5 link and ISO 11801 Class D performance or 60 dB, whichever is less
•
Measurement Accuracy:
2-Way Injector+ : Calculated per TIA TSB-67 error model (see 2-Way Injector+ NEXT
Injector Specifications table)
2-Way Injector : ±1.5 dB when measured using fixed attenuators
•
Measurement resolution: 0.1 dB
Super Injector+/Super Injector
Physical Characteristics
•
Dimensions: 7.62 cm x 16.5 cm x 3.25 cm (3.0” x 6.5” x 1.28”)
•
Weight: 0.255 kg (9 oz)
Power
•
AA Alkaline batteries
•
Battery Life: Varies depending on usage and battery quality. On average, the batteries will
withstand testing of well over 500 cables.
Features
•
Automatic power control from Scanner
•
Status indicators: Active, Test Passed, Test Failed
20Way Injector+
NEXT Performance
Parameters @ 100MHz
Testing through
36-Pin Connector
Testing
through
Mod 8
Adapter
Typical Typical Max
Dynamic Accuracy (dB) 0.3 0.5 0.3
Residual NEXT (dB) 67 62 45
Output Signal Balance (dB) 50 43 40
Common Mode Rejection (dB) 45 38 34
Random Noise (dB) 78 75 78
Transmit Return Loss (dB) 26 23 20
Receive Return Loss (dB) 22 17 17
NEXT Accuracy (dB) @ 100 MHz 0.5 (*1) 0.9 (*1) 1.5 (*2,3)