Loop Start and OPX

 

 

Table 13-5

E&M Switch Settings

 

 

 

 

 

 

 

 

 

E&M

 

Voice Port 2

 

 

Voice Port 1

 

Type

Sw. 8

Sw. 7

Sw. 6

Sw. 5

Sw. 4

Sw. 3

Sw. 2

Sw. 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I

Up

Up

Down

Down

Up

Up

Down

Down

 

 

 

 

 

 

 

 

 

II

Down

Up

Up

Down

Down

Up

Up

Down

 

 

 

 

 

 

 

 

 

V

Up

Down

Up

Up

Up

Down

Up

Up

 

 

 

 

 

 

 

 

 

The E&M types are described in Appendix C.

Interface

specifies (in conjunction with Telephony Interface Type) the type of interface that will be used by the Voice channel. Valid selections are listed below:

Telephony Interface Type Interface

OPX (FXO)

Loop Start

SLT (FXS)

Loop Start

E&M

4W E&M, 4W E&M TE, 2W E&M, 2W E&M TE

AC15

AC15A or AC15C

operating modes provide characteristics similar to those of a central office. Loop Start and SLT operating modes provide characteristics similar to those of a standard telephone set.

4W E&M is the normal setting for a PBX E&M tie-line interface that uses one pair of wires for the incoming voice signal and another pair of wires for the outgoing voice signal. 2W E&M is for an E&M tie line that uses a single pair of wires for both the incoming and outgoing voice signal.

AC15A or AC15C are 4-wire signaling systems used by PBXs to communicate with each other and other PBX-like communications equipment

2W E&M and 4W E&M can be configured in these modes, via the switches on the front of the SmartSwitch:

●2W E&Mor 4W E&M IS (Immediate Start), the industry standards for E&M oper- ation.

●2W E&M or 4W E&M DD (Delay Dial), which will cause the SmartSwitch will expect an attached PBX to raise its M-lead to request a dial register. The Smart- Switch will respond as follows: 1) toggle the E-lead, 2) send a dial register to the PBX, 3) return the E-lead to its original state, and 4) wait for dial digits from the PBX (no dial tone is transmitted to the PBX).

●2W E&M or 4W E&M WS (Wink Start), which will cause the SmartSwitch will expect an attached PBX to raise its M-lead to request a dial register. The Smart- Switch will respond by sending a dial register to the PBX. When the PBX indi- cates it is ready for dial digits (no dial tone is transmitted to the PBX), the SmartSwitch will toggle the E-lead. When the E-lead returns to its original state, the PBX will transmit dial digits to the SmartSwitch.

2W E&M TE or 4W E&M TE (Timed E&M) are specified, you can specify a delay at which the E-Lead follows the M-Lead (See TE Timer below).

13-12

SmartSwitch 1800 4. 0 User Guide, Rev 01

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Cabletron Systems 1800 manual Switch Settings
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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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