Specifications

Total Access 600 Series System Manual Section 4.2 T1 TDM UIG
61200624L1-1A © 2002 ADTRAN, Inc. 59
1. T1 TDM OVERVIEW
Time Division Multiplexing (TDM) is the technology used to transmit several voice, data, and/or video
signals at the same time over one communications path. This path is shared by fixed timeslots that
transport multiple media. The Total Access 600 Series is a complete solution IAD for Voice and Data
applications. The unit includes a network interface, V.35 interface, 10/100BaseT interface, FXS ports,
life-line voice backup, built-in IP router, and an optional battery backup for added security. The unit can
provision, test, and provide status for any of the voice and data interfaces.
2. T1 TDM APPLICATION
The unit connects to the network to provide both voice and high speed data from a single platform. The
most common T1 TDM application includes simultaneous support for the following:
• Router connection via the V.35 or Network interface
• LAN connection via a 10/100BaseT interface
• 4 POTS connections via FXS interfaces for the Total Access 604
• 8 POTS connections via FXS interfaces for the Total Access 608
• 12 POTS connections via FXS interfaces for the Total Access 612
• 16 POTS connections via FXS interfaces for the Total Access 616
• 24 POTS connections via FXS interfaces for the Total Access 624
Figure 1 shows a typical T1 TDM application.
Figure 1. Typical Total Access TDM Application
Data Switch
T1
POTS
T
X
R
X
L
I
N
K
V
.
3
5
R
X
V.35 TX
D
A
T
A
V
O
I
C
E
BA
TT
P
W
R
/
N
E
T
Ethernet LAN
Total Access 604/608/612/616/624
FXS
10/100BaseT
Voice Switch
NSP
Network
Customer
Premise