DETAIL ENGINEERING REQUIREMENTS Section 9, ATT-TP-76400
AT&T January, 2012
4.3.1 Protected connector blocks provide access, electrical protection, unit sockets and testing
appearances for OSP cable pairs and trunk cable pairs.
4.3.2 Low density connectors are approved as alternative connectors for use in offices that have an
existing installed base of 302 or 303 type connectors. This use of the low density connectors
shall be limited to filling a vertical that is partially equipped with the same connectors.
4.3.3 Empty verticals shall use the higher density connectors.
4.3.4 The new connectors shall be wire wrap models and equipped with 5 pin protector sockets.
The connector type will be specified by the AT&T Equipment Engineer.
4.3.5 The plug-in protector units are not included with the various connector blocks and shall be
ordered separately. The new purchase shall be the 4C Gas Tube Type Protector except in
the Southeast region where Solid State protectors shall be provided for general use and Gas
Tube for Lightspeed applications. Several colors of protector are available:
• Black: POTS/Voice Grade Services
• Red: Special Circuit
4.3.6 Several markers and protector covers have been standardized for further identifications. The
AT&T Equipment Engineer should be contacted for information on these items.
4.3.7 All outside plant pairs entering a Carrier Communications Space shall have protection at the
protector blocks since there is the potential for High Voltage applications to be present.
These protectors safeguard personnel, equipment, and the network from hazards such as
electrical shock, equipment damage, and fire caused by lightning and AC power faults.
4.3.8 Coil Test devices shall be provided for pre-testing of protectors before use.
4.4. Distributing Frame References
ATT-TELCO-000-000-020 Acronyms and Abbreviations Dictionary
ATT-TELCO-002-316-003, Frame Forecast M&P
ATT-TELCO-812-000-012 Distributing Frame Standards
Telcordia Practice BR 781-822-005
BSP 201-219-101, Protector Frames-General
BSP 201-222-050, COSMIC DSS System-General
5. MANUAL DIGITAL SIGNAL CROSS-CONNECT (DSX)
5.1 General
5.1.1 A DSX frame provides a manual method of cross connecting DS1, DS1C, DS3 and STS1
services, in addition to Digital Cross Connect Systems (DCS). Examples of services and
applications which may terminate on a DSX1/DSX3 are ones such as: “Nail Up” services,
Collocation, Synchronous/Asynchronous equipment, and Electrical interconnections.
9-7
(652 páginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais