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Installation
❶
Balun
Ethernet Coaxial Cable
(Twisted
Telnet Management
(Twisted Pair)
10BaseT
HUB
LAN
Server
— Provided by AT&T
RJ45
Software
— Installed by customer
— Maintained by customer
— RJ45 connection
— Located on cross-connect field
— Maximum distance - 25 feet from switch
10BaseT
10BaseT
LAN
Server
ALB
Cable
Alarm
Board
(Not Used)
Switch
TN2170 RS-232
Pair)
Modem
Null Modem
T/R
House
Wiring
Z3A4 Z3A1
Modem
Adapter
Power
Supply
Power
Supply
7400B
Site-
Specific
Connection
Power
Supply
7400A
Multi-
Function
Board
Main/Port A
MFB
Y
Cable
Terminal
Demarcation Point
Admin/Port B
DEFINITY LAN Gateway Client
Client
Telnet Management
Client
❶
❸
❹
❶
❷
NOTES:
using a D8W modular wall cord
❷
❸
❹
The TN2170 can have similar
connections as on Admin/Port B.
9600 baud modem
DEFINITY LAN Gateway Client
❷
T/R
Modem
❹
AT&T Services Remote Access
G311
H600-258 G1
ED 1E434-11
Figure 2-2. DEFINITY LAN Gateway External Connections
Issue 1 January 1996 2-5