set to 0. If you set Source of Extended Digits to User , you must set the Dial Timer to a value other than 0. If you exit the record (via [F3]) without resetting the Dial Timer and pressing [F7] to update the System Memory, the System Memory value will automati- cally be set to 5, and this value will be in effect.

Blocked Port Flag

will cause the port to be enabled (N) or disabled (Y) at node startup. The port will remain in that state until this parameter is changed or an on-line enable ([B], [B], [C] from the Main Menu) or disable ([B], [B], [A] from the Main Menu) is performed.

If set to Y, no backup DLCIs on this port will be used (even if the port is enabled via on-line port enable).

Rate

specifies the desired transmission rate for voice frames. This value is transmitted as part of a Call frame; a call will be established if there is enough bandwidth at each end to provide the configured rate.

DTMF Detection

enables, disables, or specifies a time span over which DTMF (Dual Tone Multi Fre- quency) tones will be regenerated. (DTMF tones are the "beeps" usually heard when dialing a touch-tone telephone.)

0 = DTMF tones are passed transparently to the remote device.

1 = The SmartSwitch will detect incoming tones and regenerate them as received. 2–255=The SmartSwitch will regenerate DTMF tones for the specified number of

seconds (including call setup).

Timed E Timer

is the delay after which the E&M "E" lead follows the "M" lead.

Input Level

specifies the local voice level into the voice port. This parameter adjusts the sensitivity of the local voice channel to the signal from the attached device. The purpose of this parameter is to match the voice channel dB level to the input signal. A more negative setting produces a higher input gain (i.e., +7 produces the least input gain and -22pro- duces the highest input gain). If the In level is reduced (made more negative), the voice channel will be more sensitive to the input; this will also cause the voice output at the remote device to sound louder.

Selecting this parameter will display a table of the following values. Specify a value by entering the corresponding letter from that table:

A= -22

B= -21

C= -20

D= -19

E= -18

F = -17

G= -16

H= -15

I= -14

J= -13

K = -12 L = -11 M = -10 N = -9

O= -8

P= -7

Q= -6

R= -5

S= -4

T= -3

U = -2

Z = +3

V = -1

1 = +4

W = 0

2 = +5

X = +1

3 = +6

Y = +2

4 = +7

Output Level

specifies the local voice level out of the voice port. A more positive setting produces a higher volume (i.e., +7 produces the highest volume, -22the lowest).

Selecting this parameter will display the same table shown under Input Level.

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Cabletron Systems 1800 manual Is the delay after which the E&M E lead follows the M lead
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1800 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.
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