Mitel NWK954 manual Clocks and Controls

Page 11

 

 

 

 

 

NWK954

LED Drivers

 

 

 

 

 

 

 

 

 

Signal

 

Pin no.

Type

 

Description

 

 

 

 

 

 

COLLED_N

 

109

Standard

 

Collision LED. Drives an LED to indicate that a collision

 

 

 

digital output

 

has occurred either locally or elsewhere in the stack.

 

 

 

 

 

 

P0_RXLED_N

 

124

Standard

 

Port 0 activity LED. Drives an LED to indicate link/activity

 

 

 

digital output

 

on port 0. The LED is turned on when a link is established

 

 

 

 

 

and flashes off when a packet is being received.

 

 

 

 

 

 

P1_RXLED_N

 

122

Standard

 

Port 1 activity LED. Drives an LED to indicate link/activity on

 

 

 

digital output

 

port 1. The LED is turned on when a link is established and

 

 

 

 

 

flashes off when a packet is being received.

 

 

 

 

 

 

P2_RXLED_N

 

120

Standard

 

Port 2 actlvlty LED. Drives an LED to indicate link/activity on

 

 

 

digital output

 

port 2. The LED is turned on when a link is established and

 

 

 

 

 

flashes off when a packet is being received.

 

 

 

 

 

 

P3_RXLED_N

 

118

Standard

 

Port 3 activlty LED. Drives an LED to indicate link/activity on

 

 

 

digital output

 

port 3. The LED is turned on when a link is established and

 

 

 

 

 

flashes off when a packet is being received.

 

 

 

 

 

 

P0_ERLED_N

 

123

Standard

 

Port 0 error LED. Drives an LED to indicate an error on

 

 

 

digital output

 

port 0. See the text for a full description.

 

 

 

 

 

 

P1_ERLED_N

 

121

Standard

 

Port 1 error LED. Drives an LED to indicate an error on

 

 

 

digital output

 

port 1. See the text for a full description.

 

 

 

 

 

 

P2_ERLED_N

 

119

Standard

 

Port 2 error LED. Drives an LED to indicate an error on

 

 

 

digital output

 

port 2. See the text for a full description.

 

 

 

 

 

 

P3_ERLED_N

 

117

Standard

 

Port 3 error LED. Drives an LED to indicate an error on

 

 

 

digital output

 

port 3. See the text for a full description.

 

 

 

 

 

 

ACTLED_N4

 

116

Standard

 

Utilization LEDs. Drives 5 LEDs to indicate utilization of the

ACTLED_N3

 

115

digital outputs

 

network segment. See the text for a full description.

ACTLED_N2

 

114

 

 

 

ACTLED_N1

 

113

 

 

 

ACTLED_N0

 

112

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 6

Clocks and Controls

 

 

 

 

 

 

 

 

 

Signal

 

Pin no.

Type

 

Description

 

 

 

 

 

 

TXCLKIN

 

86

Digital input

 

25MHz reference clock. Supplied from an external source

 

 

 

no pull-up

 

to all NWK954s on the local expansion bus.

 

 

 

 

 

 

RESET_N

 

5

Open drain

 

Asynchronous reset. This signal is driven low by the on-

 

 

 

digital output and

 

chip power-on reset circuit, but may also be driven low

 

 

 

digital input,

 

externally for manual reset. Must be pulled high by an

 

 

 

no pull-up

 

external 5kΩ resistor.

 

 

 

 

 

 

PSEN0

 

87

Digital inputs

 

Power-savlng enables. 11 enables power-saving on all

PSEN1

 

88

with pull-ups

 

ports. 01 suppresses power saving on port 0, 10

 

 

 

 

 

suppresses power saving on port 3, 00 suppresses power-

 

 

 

 

 

saving on all ports.

 

 

 

 

 

 

TA4

 

13

Digital inputs,

 

Scrambler seed. Each ot the four PHY modules in the

TA3

 

14

no pull-ups

 

NWK954 is provided with a unique scrambler seed derived

TA2

 

15

 

 

from TA[4:2]. To ensure that all ot the local PHYs have

 

 

 

 

 

unique scrambler seeds, each NWK954 connected to the

 

 

 

 

 

local expansion bus should have its TA[4:2] input set to a

 

 

 

 

 

unique value by connecting to DIGVDD or DIGGND.

 

 

 

 

 

 

 

 

 

 

Table 7

11

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Contents Ordering Information FeaturesPreliminary Information NWK954 Compliance with Standards GP128Functional Description OvervlewNWK954 block diagram Carrier Integrity Monitor Basic Repeater FunctionJabber Protection Auto-Partition FunctionExternal backplane drivers/receivers Network utilization LED DriversNWK954 Port statusInitialization Power Saving on unused ports100BASE-TX Receiver 100BASE-TX TransmitterContinues… Signal Pin no Type DescriptionPIN Descriptions Network InterfaceBackplane collision output enable. Enables the external Backplane data input enable. Enables the externalBackplane data output enable. Enables the external Clocks and Controls Recommended Operating Conditions PowerNo Connects Absolute Maximum RatingsDC Electrical Characteristics Power SupplyComponent Value Tol Description AC Electrical CharacteristicsCharacteristic Reference External Components See FigMagnetics Lead Plastic Quad Flatpack GP128 Package Details

NWK954 specifications

The Mitel NWK954 is a powerful, versatile networking device designed to meet the demands of modern communication systems. This device is tailored for businesses seeking robust networking capabilities while offering a suite of features that enhance connectivity and communication efficiency.

One of the standout characteristics of the Mitel NWK954 is its advanced call handling capabilities. It supports multiple concurrent calls, ensuring that organizations can handle high volumes of communication without any degradation in service quality. This feature is particularly beneficial for customer service centers and enterprises that prioritize seamless communication.

Equipped with VoIP technology, the NWK954 allows businesses to take advantage of Voice over Internet Protocol for efficient and cost-effective voice communications. Integration with existing telephony systems is simplified, enabling organizations to leverage their current infrastructure while upgrading to more sophisticated functionalities. The device supports a range of codecs, making it adaptable for various bandwidth scenarios, which is essential for ensuring voice clarity and minimizing latency.

The NWK954 is also characterized by its robust security features. It incorporates advanced encryption protocols to safeguard voice data from potential threats, ensuring secure communication across the network. This security is crucial for businesses that require confidentiality and data protection in their communication processes.

In terms of connectivity, the Mitel NWK954 offers multiple Ethernet ports that facilitate easy integration with existing networks. This flexibility allows businesses to connect various devices and systems, enhancing the overall communication ecosystem. Additionally, its support for Power over Ethernet (PoE) simplifies the installation process, eliminating the need for separate power sources for connected devices.

Another notable feature is its user-friendly interface, which simplifies management and configuration tasks. Organizations can easily monitor call activities, customize settings, and generate reports, fostering an efficient and user-centric environment.

In summary, the Mitel NWK954 is a comprehensive networking solution that boasts advanced call handling, VoIP support, robust security features, flexible connectivity options, and a user-friendly management interface. These characteristics position it as a valuable asset for businesses looking to enhance their communication capabilities and streamline operations in an increasingly interconnected world.
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