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61180403L1-5B Issue 2, December 2004 11
4. TEST FEATURES
The FXS/DPO supports the following tests for each
port:
• Digital Network Loopback
• 1004 Hz Tone Generation
• Network Hook Test
• Customer Ringing Test
These test are used to support circuit turn-up and
maintenance efforts. Test functions can be activated
locally via the
ADMIN port on the SCU, or remotely via
Telnet or SNMP and are initiated on an individual port
basis. The test are described below.
Digital Network Loopback Test
The Digital Network Loopback test activates a
loopback path that takes the DS0 data received from the
network and transmits it back to the network in the
appropriate transmit time slot.
1004 Hz Tone Generation Test
The 1004 Hz Tone Generation Test generates a 1004 Hz
Digital Reference Signal (DRS) tone toward the T1
network (0 dBm fixed), toward the customer loop (RX
TLP setting), or both directions simultaneously. While
sending the DRS tone toward the customer loop the
transmit audio path (towards the T1 network) will be
interrupted.
Network Hook Test
The Network Hook Test forces the AB signaling states
towards the T1 network. The bits are set based upon the
operating mode of the channel unit.
Customer Ringing Test
The Customer Ringing Test will activate the ports ring
relay in a 2-second on and 4-second off cadence,
providing ringing toward the customer’s loop.
NOTE
The tests cannot run simultaneously. If a test is
in progress and another test is initiated, the first
test will be terminated when the new test starts.
5. MAINTENANCE
The Total Access FXS/DPO does not require routine
maintenance for normal operation.
ADTRAN does not recommend that repairs be
attempted in the field. Repair services may be obtained
by returning the defective unit to ADTRAN. Refer to
the Warranty and Customer Service section for further
information.
6. SPECIFICATIONS
Specifications for the Total Access FXS/DPO are
detailed in Table 8 on page 12.
7. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within the
warranty period if it does not meet its published specifi-
cations or fails while in service. Warranty information
can be found at www.adtran.com/warranty
.
Refer to the following subsections for sales, support,
Customer and Product Service (CAPS) requests, or
further information.
ADTRAN Sales
Pricing/Availability:
800-827-0807
ADTRAN Technical Support
Pre-Sales Applications/Post-Sales Technical
Assistance:
800-726-8663
Standard hours: Monday - Friday, 7 a.m. - 7 p.m. CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Repair/CAPS
Return for Repair/Upgrade:
(256) 963-8722
Repair and Return Address
Contact CAPS prior to returning equipment to
ADTRAN.
ADTRAN, Inc.
CAPS Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807