Figure 2. Dc Resistive Signatures - ADC PG-FlexPlus AMU-912 Manual

SCP-AMU912-010-06H
In support of MLT testing on the Universal system, the AMU-912 supplies 1kΩ from Tip to Ground in lieu of allowing
the PGTC to be activated. For either MLT or 4TEL test systems, subscriber drop test results are provided as TA-
909 DC resistive signatures as shown in
terminals on the backplane. These resistive signatures are routed to the channel under test tip and ring leads and
finally passed to MLT for interpretation
switch, use of a PCU-796 conditioner unit is required for proper PGTC test result reporting.
In support of MLT testing on the Integrated system, the AMU-912 provides the diode/410Ω bypass integrity test
signature as required by TR-08. Additionally, subscriber drop test results are provided as TA-909 DC resistive
signatures as shown in Table 1 on page 3
backplane.
CO SWITCH
Channel
Units
PGTC
Channel
Tester
MLT
4
Table 1 on page 3
(Figure 2). When the test environment includes IMLT on a Class 5ESS
by the AMU-912 to the Test Tip and Test Ring terminals on the
Channel 1 TIP
Channel 1 RING
K
CH1
Channel N TIP
Channel N RING
K
CHn
No Test
Trunk
Controller
K
PGTC Metallic Bypass Pair
(Not Used)
Mechanized
Loop Test
System

Figure 2. DC Resistive Signatures

by the AMU-912 to the Test Tip and Test Ring
Test Test
Tip Ring
CPOTS
+116V
Detection
Channel
I/F
K
A
CN
R
R
s
s
M
Line
X
I/F
+116V
Detection
Channel
I/F
K
C1
R R
s s
AMU
+116V K
-116V
P
Detection
Detection
(with MLT
short)
-48V
Detection
Resistive
Matrix
LMOS
Loop
Maintenance
Operating
System
July 19, 2004
RPOTS
K
R1
Circuit 1
Tip/Ring
Channel
I/F
Circuit n
Tip/Ring
A
T1
M
Line Test
X
I/F Head
ADC Telecommunications, Inc.