Specifications

D

 

Capacities

Premises Equipment

206 Module

Extension Jack

 

■ 24 Centrex lines via line jacks on

■ 2 Centrex lines

■ Maximum 2 devices per extension jack,

 

four 206 and four 400 modules

■ 6 extensions

total REN on jack not to exceed 2.0*

 

■ 24 extensions via extension jacks on

 

2 devices require AT&T 267F2 bridging

 

four 206 modules

 

adapter. MLS- or MLC-model phone REN:

 

■ 1 loudspeaker paging system via

400 Module

0 (zero)

 

4 Centrex lines

■ No more than one MLS- or MLC-model

 

PAGE jack on primary processor

phone per jack

 

 

 

module

 

 

 

■ 1 audio source via Music-on-Hold

 

For programming, an MLS display phone

 

jack on primary processor module

 

must be connected to extension jack 10 or

 

(RCA phono plug required)

 

11.

 

■ 1 call reporting device via SMDR

 

 

 

jack on primary processor module

 

 

 

(355A/F adapter required)

 

 

■ 2 doorphones (2 extension jacks)

Dimensions

■ Primary Proc. Mod.

11”(D) x 17”(H) x 1.5”(W) or 27.9 x 43.2 x 3.8 cm

4.0 lbs or 1.8 kgs

and Weights

■ Exp. Proc. Mod.

11”(D) x 17”(H) x 1.5”(W) or 27.9 x 43.2 x 3.8 cm

4.0 lbs or 1.8 kgs

(approx.)

■ 206 module

11”(D) x 17”(H) x 1.5”(W) or 27.9 x 43.2 x 3.8cm

4.5 lbs or 2.0 kgs

 

■ 400 module

11”(D) x 17”(H) x 1.5”(W) or 27.9 x 43.2 x 3.8 cm

4.0 lbs or 1.8 kgs

 

■ Backplane & cover

12”(D) x 19”(H) x 11”(W) or 30.5 x 48.3 x 27.9 cm

5.5 lbs or 2.5 kgs

 

■ MLS-34D phone

9.7”(D) x 5.3”(H) x 10”(W) or 24.6 x 13.5 x 25.4 cm

2.9 lbs or 1.3 kgs

 

■ MLS-12D phone

9.5”(D) x 5”(H) x 6.75”(W) or 24.1 x 12.7 x 17.1 cm

1.8 lbs or 0.8 kgs

 

■ MLS-12 phone

9.5”(D) x 5”(H) x 6.75”(W) or 24.1 x 12.7 x 17.1 cm

2.0 lbs or 0.9 kgs

 

■ MLS-6 phone

9.5”(D) x 5”(H) x 6.75”(W) or 24.1 x 12.7 x 17.1 cm

2.1 lbs or 1.0 kgs

 

■ MLC-6 phone

9.4”(D) x 3.4”(H) x 7”(W) or 23.9 x 8.6 x 17.8 cm

2.6 lbs or 1.2 kgs

 

 

Switch Fabric ■ Full digital, nonblocking

 

 

 

 

Local Phone

■ FCC registration number (U.S): AS5 USA-61630-KF-E

 

Company

DOC registration number (Canada): 230 3756

 

Information

■ REN (outside line jack): 0.9A per line jack

 

 

■ Jack type: RJ11C

 

 

 

■ Loop start lines

 

 

 

 

Extension

■ Ringing voltage: +5VDC, -140 VDC peak to peak; trapezoidal wave shaping

Jack

■ 35- to 38-Volt talk battery

 

 

■ Ringing frequency: 20 Hz

 

*The two devices combined on an extension jack can be an MLS- or MLC-model phone with a standard device, or two standard devices; DO NOT connect two MLS- or MLC-model phones to the same extension jack. If a device lists two RENs, use the higher number when adding up RENs.

Specifications D-1

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Image 144
AT&T II manual Specifications D-1
Page 143 Page 145

II specifications

AT&T II, a pivotal case in the landscape of telecommunications regulation, emerged from the expansive antitrust actions against the American Telephone and Telegraph Company (AT&T). Following World War II, AT&T had established itself as a telecommunications behemoth, monopolizing the market. The ramifications of this dominance spurred a significant shift in regulatory measures, leading to the dissolution of the Bell System in 1984, which consisted of AT&T and its regional operating companies.

One key feature of AT&T II is its emphasis on promoting competition in the telecommunications sector. The court's decision aimed to dismantle the monopolistic practices that had stifled innovation and restricted consumer choice. By encouraging competition among various service providers, the ruling paved the way for an environment where new technologies could flourish.

The technologies that emerged post-AT&T II significantly transformed the telecommunications landscape. The introduction of new digital switching systems allowed for improved call quality and increased network efficiency. The evolution of fiber-optic technology also played a crucial role, enabling faster transmission speeds and greater data capacity. Moreover, innovative services, such as mobile telephony and broadband internet, proliferated as competition increased.

Another characteristic of AT&T II is its focus on accessibility and consumer protection. The ruling mandated that telecommunications services be available to a broader swath of the population, ensuring that underserved communities had access to essential communication services. This shift not only democratized access but also laid the groundwork for the modern internet revolution, fostering the growth of the digital economy.

The impact of AT&T II can also be seen in the regulatory frameworks that followed. The Federal Communications Commission (FCC) adopted policies aimed at enhancing market transparency and ensuring fair practices among competitors. These regulatory changes helped to create a more equitable playing field, allowing smaller companies to compete against established giants.

In summary, AT&T II marked a turning point in telecommunications history, characterized by a focus on competition, technological advancements, and consumer protection. The dissolution of AT&T's monopoly allowed for the rapid evolution of technology and services, ultimately benefiting consumers and fostering an environment ripe for innovation. This ruling not only redefined the telecommunications industry but also set a precedent for how markets are regulated in the United States.
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