Product specifications

B-2 Issue 1, November 2003 61181113L2-5A
MUX MODE TEST ACCESS
MUX MON, TX to Customer
The RX of the BERT receives data from the
TX MON
EQ
jack (Figure B-4). This data is a copy of the data
that the H2TU-C will transmit to the Customer. The TX
of the BERT is not used. This test is non-intrusive.
Figure B-4. MUX MON, TX to Customer
MUX MON, RX from Customer
The RX of the BERT receives data from the
RX MON
jack (Figure B-5). This data is 432 ohm copy of the
data that the H2TU-C will receive from the Customer
and route to the Total Access Shelf's MUX (Network).
The TX of the BERT is not used. This test is non-
intrusive.
Figure B-5. MUX MON, RX from Customer
MUX EQ, TX to Network, RX from the Network
The TX of the BERT is connected to the
EQ TX jack,
and the RX of the BERT is connected to the
RX EQ jack
(Figure B-6). The TX of the BERT is then substituted
for the data that the H2TU-C sends to the Total Access
Shelf’s MUX (Network). The RX of the BERT receives
data directly from the MUX (Network). The
MON TX
and
RX jacks are 432 ohm impedance copies of the EQ
jack
TX and RX. This test is intrusive.
NOTE
Via the
Tes t screen, ensure that the equipment
jack is in “
To N e tw o rk ” mode. In “To Networ k ”
mode, AIS (unframed all 1’s) is sent in the
Customer direction.
Figure B-6. MUX EQ, TX to Network, RX from
Network
TX
E
Q
RX
TX
M
O
N
RX
DSL
DSX/DS1
ALM
B8ZS/ALM
(YEL) (GRN)
ESF/ SF
(YEL) (GRN)
LBK
X
From DSX
To DSX
From CUST
To CUST
From MUX
To MUX
TX
RX
T1 BERT
432 ‰
432 ‰
TX
E
Q
RX
TX
M
O
N
RX
DSL
DSX/DS1
ALM
B8ZS/ALM
(YEL) (GRN)
ESF/ SF
(YEL) (GRN)
LBK
X
From DSX
To DSX
From CUST
To CUST
From MUX
To MUX
TX
RX
T1 BERT
432 ‰
432 ‰
TX
E
Q
RX
TX
M
O
N
RX
DSL
DSX/DS1
ALM
B8ZS/ALM
(YEL) (GRN)
ESF/ SF
(YEL) (GRN)
LBK
TX
RX
T1 BERT
From DSX
To DSX
From CUST
To CUST
From MUX
To MUX
432 ‰
432 ‰