System Terminal Interface
4-3
7900-A2-GB20-00
March 1998
Accessing the MTU-M Through a Modem
You can access the MTU-M through a modem using the DB9 connector on the
MTU-M front panel.
"
Procedure
To connect your system terminal to the MTU-M through a modem using the
MTU-M front panel DB9 connector:
1. Connect one end of the cable (supplied) to the MTU-M front panel.
2. Connect the other end of the cable to the modem using one of the following
methods:
— The DB9 to DB25 connection can be made using the terminal cable
supplied with the MTU-M and the following standard cable accessories:
79xx
DB9
79xx
Terminal
Cable
DB9F
DB9 M/M
Gender
Changer
DB9F/DB25M
DB25F/DB25M
Null Modem
Adapter or Cable
Modem
97-15634
Terminal
Cable
Gender
Change
DB9/DB25
Null Modem
DB9
DB9F
DB9 M/M
DB9F
DB25M
DB25F DB25M
3
3
3
3
2
2
3
2
2
2
2
3
3
2
5
5
5
5
7
7
7
RXD
TXD
Gnd
RXD
TXD
Gnd
MTU-M
POWER
FAIL
NMS LINK
MODEMS
ALARMS
MAJOR
MINOR
ABNML
ACO
ACTIVE
C
O
N
S
O
L
E
RESET
NETWORK
LOS/AIS/BER
LOCAL
REMOTE
LOOP BK
SYSTEM
POWER
FAIL
HDSL
LOS / BER
LOOP A
LOOP B
— Or you can customize a cable as follows:
79xx
DB9
DB25M
Modem
97-15635
RXD 3
TXD 2
Gnd 5
3 RXD
2 TXD
7 Gnd
Pin #
Pin #
MTU-M
POWER
FAIL
NMS LINK
MODEMS
ALARMS
MAJOR
MINOR
ABNML
ACO
ACTIVE
C
O
N
S
O
L
E
RESET
NETWORK
LOS/AIS/BER
LOCAL
REMOTE
LOOP BK
SYSTEM
POWER
FAIL
HDSL
LOS / BER
LOOP A
LOOP B
Summary of Contents for HOTWIRE 7900
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