ADTRAN Total Access 750 Installation And Maintenance

CONTENTS
1. GENERAL ................................................................... 1
2. INSTALLATION .......................................................... 2
3. OPTIONS ..................................................................... 2
4. OPERATION ................................................................ 3
5. TESTING ..................................................................... 4
6. SPECIFICATIONS ....................................................... 5
7. MAINTENANCE ......................................................... 5
8. WARRANTY AND CUSTOMER SERVICE .............. 5
FIGURES
Figure 1. TA 750/850/1500 Quad FXO ............................. 1
Figure 2. FXO to FXS Deployment ................................... 2
Figure 3. Circuit Path ......................................................... 2
Figure 4. Connector Pin Assignments ............................... 4
TABLES
Table 1. TA 750 Time Slot Assignments ............................ 3
Table 2. Specifications ........................................................ 5

1. GENERAL

This practice provides installation and maintenance
procedures for the ADTRAN Total Access 750/850/
1500 Quad Foreign Exchange Office Access Module.
Figure 1 is an illustration of the Quad FXO. The unit
is multifunctional and can be provisioned to operate in
one the following modes:
• 2-Wire Foreign Exchange Office (2FXO)
• Dial Pulse Terminate (DPT)
Revision History
This document has been revised to change
PASSWORD information.
Features
The features of the TA 750/850/1500 Quad FXO, part
number 1175407L1, include the following:
• Provides four individual analog voice
interfaces.
µ-law encoding/decoding.
•
• Supports ground start and loop start signaling
(FXO mode).
Nominal 900 Ω + 2.15 µF 2-wire voice
•
frequency (VF) interface with DC isolation.
• Provides loop reverse battery signaling for DID
PBX extensions (DPT mode).
Trademarks: Any brand names and product names included in this document are
61175407L1-5B
trademarks, registered trademarks, or trade names of their respective holders.
Total Access™ 750/850/1500
QUAD FXO Access Module
Installation and Maintenance
General Description
The Quad FXO access module provides the interface
between a TA 750/850/1500 Pulse Code Modulation
(PCM) backplane, and a 2-wire voice frequency (VF)
transmission and signaling facility. The unit normally
resides at the central office and is designed for use in
conjunction with the TA 750/850/1500 Quad FXS
which resides at the customer premises.
Figure 2 shows a typical deployment using both Quad
FXO and Quad FXS access modules. The TA
750/850/1500 at the CO combines a number of voice
frequency analog lines then multiplexes them for T1
transmission to the remote TA 750/850/1500 at the
customer premises. The remote multiplexer separates
the T1 transmission to individual analog signals for
delivery to the appropriate Quad FXS.
Section 61175407L1-5, Issue 2
CLEI Code: SIC2VX0KAA

Figure 1. TA 750/850/1500 Quad FXO

• Transmit and receive attentuation settings of
0 to -9 dB in 0.1 dB increments.
• Compliant with Voice Frequency characteristics
and signaling of Telcordia
• Supports Calling Number Delivery and other
common (CLASS™) service offerings
according to TR TSY 000030 section 3.3.1.1.
• Extended temperature range: -40º to 65º C.
• UL 1950 compliant.
Section 61175407L1-5B
Issue 2, April 2000
®
TR-NWT-000057.
1