High (z) impedance, Rtu (test head) – Comtest Networks MTAS-192 METALLIC TEST ACCESS SYSTEM User Manual
Page 17
CT-IG-MTAS192-2008-v1_8.doc
Comtest Networks
MTAS-192
June 2006
Installation Guide
11
Figure 11: Loop-Around Mode
Figure 12: High-Impedance Monitor Mode for the Splitter/Access Two-Wire TAP
Facility Side (F)
(Downstream)
AF
Equipment Side (E)
(Upstream)
AE
PSTN
Class 5
DSLAM
Splitter
MTAU (MTAS-192)
Tip
Tip
Ring
Ring
T
T
R
R
2–Wire Circuit
Access Point
RTU (Test Head)
High (Z) Impedance
Facility Side (F)
(Downstream)
AF
Equipment Side (E)
(Upstream)
AE
PSTN
Class 5
DSLAM
Splitter
MTAU (MTAS-192)
Tip
Tip
Ring
Ring
T
T
R
R
2–Wire Circuit
Access Point
RTU (Test Head)