SPECIFICATIONS

Line Conditions

Table 5-3 Line Conditions

Loop Resistance Note 1

Analog Telephone Set

Standard

 

600 ohms

 

 

 

 

 

 

 

 

Option

 

2,500 ohms (DP: 10pps), 1,700 ohms (DP: 20pps),

 

 

 

1,200 ohms (DTMF)

 

 

 

 

 

 

 

 

Loop Start Trunk

Exchange Line

 

1,700 ohms

 

 

 

 

 

 

 

 

 

Tie or DID Line

 

2,500 ohms

 

 

 

 

 

 

 

Cable Length Note 2

 

 

Standard

with AC Adapter

 

 

 

 

 

Dterm Series i

Dterm 2/8/8D/16D

8DLC

300m (984ft)

Note 3

 

 

4DLC

300m (984ft)

1200m

(3937ft)

 

 

 

 

 

 

 

 

2DLC

850m (2789ft)

1200m

(3937ft)

 

 

 

 

 

 

Dterm 32D

8DLC

200m (656ft)

Note 3

 

Dterm 16LD

 

 

 

 

 

4DLC

200m (656ft)

1200m

(3937ft)

 

 

 

 

 

 

 

 

 

 

2DLC

850m (2789ft)

1200m

(3937ft)

 

 

 

 

 

 

 

DSS/BLF Console

8DLC

-

300m

(984ft)

 

Note 4

 

 

 

 

 

4DLC

-

1200m

(3937ft)

 

 

 

 

 

 

 

 

2DLC

-

1200m

(3937ft)

 

 

 

 

 

 

Operation Position

Attendant Terminal

 

Same as Dterm Series i

 

 

 

SN716

8DLC and PN-PW00 or AC Adapter

300m

(984ft)

 

Desk Console

 

 

 

 

 

4DLC and PN-PW00

350m (1148ft)

 

 

 

 

 

 

 

 

 

4DLC and AC Adapter

1200m

(3937ft)

 

 

 

 

 

 

 

2DLC

 

350m (1148ft)

 

 

 

 

 

 

Note 1: Loop resistance includes an internal resistance of telephone set or distant exchange.

Note 2: Cable length is based on the following conditions. Diameter of the cable is 0.5 mm.

The Protection arrester is not inserted between the terminal and PBX.

Note 3: When using 8DLC card, it is not available for long line function, even if it is equipped with AC Adapter.

Note 4: The DSS/BLF Console requires local AC/DC supply.

ND-91649(E)

CHAPTER 5

 

Page 47

Page 55
Image 55
NEC ND-91649 manual Line Conditions

ND-91649 specifications

The NEC ND-91649 is an advanced optical disc writer designed for data storage and retrieval. It is particularly known for its impressive compatibility with various disc formats, enabling users to write, read, and erase data on multiple types of DVDs and CDs. This versatility makes it a choice favorite among both casual users and professionals who require reliable optical storage solutions.

One of the standout features of the ND-91649 is its support for a wide array of media formats. It can handle DVD+R, DVD+RW, DVD-R, DVD-RW, and CD formats, ensuring that users have the flexibility needed to manage their data effectively. The drive also supports dual-layer DVDs, enabling higher data capacity with up to 8.5GB on a single disc, which is invaluable for large backups and extensive media projects.

In terms of performance, the ND-91649 boasts impressive write speeds. It can achieve up to 16x for DVD+/-R formats, making it one of the faster options available in its class. Additionally, its read capabilities are equally robust, with fast access times that help in quickly retrieving data. This efficiency is further enhanced by its use of advanced caching techniques, which reduce buffer underrun errors during writing processes.

The technology behind the ND-91649 includes features such as SolidBurn, which optimizes writing quality by learning and adjusting to different media types. This ensures that users can achieve high-quality burns, regardless of the disc brand used. Furthermore, the drive is equipped with a robust error correction mechanism that minimizes the risk of data loss and preserves the integrity of written data.

Another notable characteristic of the ND-91649 is its compact and stylish design. It is engineered to fit seamlessly into a variety of computer setups, offering a blend of aesthetic appeal and practical functionality. The drive employs a standard interface, typically SATA, facilitating easy connectivity with most modern motherboards and laptops.

In summary, the NEC ND-91649 stands out in the crowded field of optical disc drives due to its versatile format support, impressive writing speeds, and advanced technologies like SolidBurn. Its user-friendly design and reliable performance make it an excellent choice for anyone in need of a dependable optical storage solution. Whether for personal use or professional applications, the ND-91649 delivers a level of quality and efficiency that meets the demands of today’s digital storage needs.