Table 9. Db Loss Over Temperature @ 20 Khz - ADTRAN Total Reach T400 TRI-C Installation And Maintenance Manual

Clockwise (CW) rotation selects channel B1 channel,
counterclockwise (CCW) selects B2.
Local technicians may test in both the upstream
toward the ISDN switch or downstream toward
customer's NT1, including loopback for up to four
downstream addresses and the customer's NT1. The
DS0 logic access allows for standard DS0 logic test
sets such as the TPI 108/109 RT II or the FIREBERD
4000/6000. TTC has an available adapter cable, P/N
CB-31611, for use with the FIREBERD test sets. TPI
offers a 108/109 model with a built-in RJ-45 jack that
will connect to the TRI-C using a straight-through
8-conductor RJ-45 cable.
Loopback Testing (ADR1-ADR4 & NT1)
Loopback testing in the network-to-customer direction
can be initiated from either the ISDN switch or the
faceplate. Loopbacks initiated from the faceplate are
non-intrusive to the other B channels and to the D
channel. To initiate a loopback, perform the
following:
1. Connect the DS0 test set configured for Near
Logic to the TRI-C RJ-45 jack.
2. Rotate the rotary switch CW or CCW for B1 or
B2 respectively, stopping on the desired
address. The TEST LED will turn On yellow
when the loopback is established to the selected
address. If the selected address does not
respond, the TEST LED will remain Off.
P a l t s c i C a b
9 1 G u a e g P C I ( º 0 ) F
9 1 G u a e g P C I 7 ( º 0
9 1 G u a e g P C I ( 2 1 º 0
2 2 G u a e g P C I ( º 0 ) F
2 2 G u a e g P C I 7 ( º 0
2 2 G u a e g P C I ( 2 1 º 0
4 2 G u a e g P C I ( º 0 ) F
4 2 G u a e g P C I 7 ( º 0
4 2 G u a e g P C I ( 2 1 º 0
6 2 G u a e g P C I ( º 0 ) F
6 2 G u a e g P C I 7 ( º 0
6 2 G u a e g P C I ( 2 1 º 0
61212082L1-5C

Table 9. dB Loss Over Temperature @ 20 kHz

d B L o s
e l
p p p p p r e r e r e r e r e k k k k k t f t f t f t f t f
0 5 . 8 6
) F 0 6 . 5 5
) F 0 7 . 9 1
1 0 . 6 0
) F 1 1 . 4 3
) F 1 2 . 8 3
1 4 . 9 2
) F 1 5 . 6 8
) F 1 7 . 1 2
1 9 . 1 6
) F 2 1 . 9 5
) F 2 3 . 3 2
Section 61212082L1-5, Issue 3
3. Observe the bit error counter on the test set to
determine error count.
4. Change the rotary switch to another address or
Bearer channel to test additional network
addresses. It is not necessary to exit the test
mode to select a new address.
5. Upon completion of all tests remove the RJ-45
plug and return the address knob to the unused
position.
Point-to-Point Test (OFC TX, TRI TX)
A point-to-point (straightaway) test can be performed
to either the U-interface (OFC TX) or the
TRI-interface (TRI TX). Ensure the local and remote
test sets are configured for the same test pattern. To
initiate a point-to-point test, perform the following:
1. Connect the DS0 test set configured for Near
Logic to the TRI-C RJ-45 jack.
2. Rotate the eight-position rotary switch CW or
CCW for B1 or B2 selection respectively,
stopping on either OFC TX or TRI TX. The
TEST LED will flash once per second for B1
and twice per second for B2.
3. Upon synchronization of the test pattern to the
remote test set, observe the test set's bit error
counter to determine the error count.
4. Upon completion of all tests remove the RJ-45
plug and return the address knob to the unused
position.
s
P a p r e C
9 1 G u a e g P U L P
9 1 G u a e g P U L P
9 1 G u a e g P U L P
2 2 G u a e g P U L P
2 2 G u a e g P U L P
2 2 G u a e g P U L P
4 2 G u a e g P U L P
4 2 G u a e g P U L P
4 2 G u a e g P U L P
6 2 G u a e g P U L P
6 2 G u a e g P U L P
6 2 G u a e g P U L P
d B L
a b e l
p p p p p r e r e r e r e r e
( º 0 ) F 0 6 .
7 ( º 0 ) F 0 7 .
( 2 1 º 0 ) F 0 7 .
( º 0 ) F 1 0 .
7 ( º 0 ) F 1 1 .
( 2 1 º 0 ) F 1 2 .
( º 0 ) F 1 4 .
7 ( º 0 ) F 1 6 .
( 2 1 º 0 ) F 1 7 .
( º 0 ) F 1 9 .
7 ( º 0 ) F 2 1 .
( 2 1 º 0 ) F 2 3 .
o s s
k k k k k t f t f t f t f t f
1 1
5 0
8 6
4 5
5 9
0 9
5 7
3 5
1 7
5 5
0 7
3 1
7