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61179605L5-5B 1-1
Section 1
Introduction
GENERAL
This practice is an installation and maintenance guide for the ADTRAN Total Access
®
1240
2-wire/4-wire Single-pair High-speed Digital Subscriber Line (SHDSL) Digital Subscriber Line
Access Multiplexer (DSLAM). Figure 1-1 illustrates the Total Access 1240 (P/N 1179605L5)
front panel.
Figure 1-1. Total Access 1240 Front Panel
Description
The Total Access 1240 is a 2-wire/4-wire SHDSL mini-DSLAM, consisting of 24 ports fed by a
single 10/100Base-T Ethernet port.
The Total Access 1240 integrates both the SHDSL ports and the Ethernet port onto a single
Printed Circuit Board (PCB) assembly and is powered by –48 VDC. SHDSL port connections
are made through a 50-pin amphenol connector. Ethernet connections are made through an
RJ-45 jack. An alarm port and six LEDs are supported. The unit is fully manageable through
the craft port and an SNMP network management workstation.
The Total Access 1240 is rack-mountable and measures 44.45 millimeters (1.75 inches) high
by 438.15 millimeters (17.25 inches) wide by 282.575 millimeters deep (11.125 inches).
Measurements do not include the mounting brackets. The device can be powered using one or
two –48 VDC sources, one for a non-redundant power configuration, two for a redundant
power configuration.