AT&T Merlin Spezifikationen PDF herunterladen (Seite 21)

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OFF PREMISES STATIONS

On occasion, customers need to locate telephones away from the principal area of the PBX or Key system

terminal concentration. The telephone can use an off-premises or out-of-building arrangement. There is a

major difference between the two types.

An off-premises telephone (OPT) is a single-line set that is located in another building and connected to the

LEGEND system via a special arrangement with the CO.

The station has the same features as an on-premises single-line station except it is counted

as an outside party in a conference call. Also, the message light feature will not operate

with the OPT set.

The OPT feature is sometimes used to provide service to executives at their homes. It allows them remote

access to the

PBX

system features and services.

An out-of-building telephone, on the other hand, is connected directly to a system port even though it is not

located in the same building. It may be an ATL or MLX set, single-line or multiline. Because it is direct, it

has access to all system features. However, if the telephone is located less than 1000 feet from the switch,

an IROB (in range, out of building) protector must be attached.

The OPT connection from a CO would be equivalent to a tie line; in effect, it is a dedicated line. Because it

has the same electrical properties as a tie line, the 008 OPT module can be used to connect the LEGEND

system to another LEGEND system, or another PBX or key system. The characteristics of the 008 OPT

module are listed below:

It should be noted that an OPT connection to a CO requires that the LEGEND system be no further than 1

miles from the CO, depending upon the characteristics of the CO involved.

008 OPT:

The Off-Premises Telephone 008 OPT Module is used to connect off-premises touch-tone

telephones to the LEGEND system. The system software recognizes the 008 OPT module as a 012 module.

Even- though the OPT module has 8 jacks, it uses 12 ports of capacity, thereby decreasing overall station

capacity by four stations for every OPT module used.

Module

008 OPT

Station Type

Specifications

On-premises or

off-

premises single-line

telephone

Capacity:

8 stations, 2

Touch-Tone receivers

Notice to Telco: meets

FCC 0L13C and :/FCC

Class C Loop resistance:

serves 2-wire loops to

1300 ohms, including

stations Port losses: 3 db

(both directions)

Unit Load Rating

max. distance supported

8.0

1-3 miles between Legend

and CO

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