HOW SURGE EVENTS HAPPEN In a normal equipment environment there are reasonable threats from Electrostatic Discharge (ESD) & lightning transients which can cause loss of data integrity & permanent damage to equipment if not controlled. ESD threats are generated by personnel movement, which causes triboelectric (rubbing causing a separation of charge) charges to accumulate on equipment or clothing & then be discharged through hand or tool "touch". This discharge can represent several thousand volts at 10 to 30 amps of current. There are two primary threats from an ESD event. These are the peak current of the discharge & the resulting electromagnetic field. Should the input to the device not be protected from this ESD threat, as little as 100 milli-Joules can cause permanent failure to an input device at the silicon die level. Lightning also can create a large disturbance & delivery destructive energy to the equipment. These lightning events cause differential voltages to develop as a result of inductance in the protective earth ground path to the equipment. During a direct lightning strike it is possible to measure peak currents into the Kilo Amp range. These events can occur both at the facility as well as outside the facility along utility power lines. When they occur on the power line outside of the facility peak currents can be extended in time due to the additional inductance of the power line. A normal event may be 10 usec zero to peak, with a decay of 200 usec. These currents are called longitudinal. The Cisco surge protection cable will adequately prevent this transient damage from occurring to within the industry standards for lightning protection devices. A good equipment chassis protective ground is strongly recommended to assure adequate protection. EFT disturbances occur as a result of arcing contacts in electro-mechanical switches & relays commonly found in an industrial environment. The electro-mechanical switches are used to connect & disconnect inductive loads. Like ESD, EFT can be especially fatal on data & I/O lines. The fast rise time of the EFT pulses demand similar protection as ESD pulses. CONFIGURATIONS THAT ARE SUBJECT TO SURGE EVENTS There are several hardware configurations & applications that are more subject to damage from ESD events. These configurations include the following:
- Locations Subject to Electrical Storms-Any location where electrical storms are common is a good candidate site for surge protection on the serial ports;
- Unshielded Cables-If unshielded cables are used to connect to the serial port, it is much more likely that electrical discharges will be picked up by the cabling & damage the serial port;
- Long Cable Runs-The longer the cable, the more susceptible it is to surge events, even if the cable is shielded;
- Outside Wiring-If the cable runs outdoors, it is more susceptible to surge events;
- Different Earth Grounds-If the router & the device at the other end of the serial cable are connected to different earth grounds, then the cable can become a conduit for current that equalizes different ground potentials;
- Installations with Multiple Serial Port Failures-If an installation has experienced multiple serial port failures in the past, it is a good candidate for surge protection;





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HOW SURGE EVENTS HAPPEN In a normal equipment environment there are reasonable threats from Electrostatic Discharge (ESD) & lightning transients which can cause loss of data integrity & permanent damage to equipment if not controlled. ESD threats are generated by personnel movement, which causes triboelectric (rubbing causing a separation of charge) charges to accumulate on equipment or clothing & then be discharged through hand or tool "touch". This discharge can represent several thousand volts at 10 to 30 amps of current. There are two primary threats from an ESD event. These are the peak current of the discharge & the resulting electromagnetic field. Should the input to the device not be protected from this ESD threat, as little as 100 milli-Joules can cause permanent failure to an input device at the silicon die level. Lightning also can create a large disturbance & delivery destructive energy to the equipment. These lightning events cause differential voltages to develop as a result of inductance in the protective earth ground path to the equipment. During a direct lightning strike it is possible to measure peak currents into the Kilo Amp range. These events can occur both at the facility as well as outside the facility along utility power lines. When they occur on the power line outside of the facility peak currents can be extended in time due to the additional inductance of the power line. A normal event may be 10 usec zero to peak, with a decay of 200 usec. These currents are called longitudinal. The Cisco surge protection cable will adequately prevent this transient damage from occurring to within the industry standards for lightning protection devices. A good equipment chassis protective ground is strongly recommended to assure adequate protection. EFT disturbances occur as a result of arcing contacts in electro-mechanical switches & relays commonly found in an industrial environment. The electro-mechanical switches are used to connect & disconnect inductive loads. Like ESD, EFT can be especially fatal on data & I/O lines. The fast rise time of the EFT pulses demand similar protection as ESD pulses. CONFIGURATIONS THAT ARE SUBJECT TO SURGE EVENTS There are several hardware configurations & applications that are more subject to damage from ESD events. These configurations include the following:
- Locations Subject to Electrical Storms-Any location where electrical storms are common is a good candidate site for surge protection on the serial ports;
- Unshielded Cables-If unshielded cables are used to connect to the serial port, it is much more likely that electrical discharges will be picked up by the cabling & damage the serial port;
- Long Cable Runs-The longer the cable, the more susceptible it is to surge events, even if the cable is shielded;
- Outside Wiring-If the cable runs outdoors, it is more susceptible to surge events;
- Different Earth Grounds-If the router & the device at the other end of the serial cable are connected to different earth grounds, then the cable can become a conduit for current that equalizes different ground potentials;
- Installations with Multiple Serial Port Failures-If an installation has experienced multiple serial port failures in the past, it is a good candidate for surge protection;





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HOW SURGE EVENTS HAPPEN In a normal equipment environment there are reasonable threats from Electrostatic Discharge (ESD) & lightning transients which can cause loss of data integrity & permanent damage to equipment if not controlled. ESD threats are generated by personnel movement, which causes triboelectric (rubbing causing a separation of charge) charges to accumulate on equipment or clothing & then be discharged through hand or tool "touch". This discharge can represent several thousand volts at 10 to 30 amps of current. There are two primary threats from an ESD event. These are the peak current of the discharge & the resulting electromagnetic field. Should the input to the device not be protected from this ESD threat, as little as 100 milli-Joules can cause permanent failure to an input device at the silicon die level. Lightning also can create a large disturbance & delivery destructive energy to the equipment. These lightning events cause differential voltages to develop as a result of inductance in the protective earth ground path to the equipment. During a direct lightning strike it is possible to measure peak currents into the Kilo Amp range. These events can occur both at the facility as well as outside the facility along utility power lines. When they occur on the power line outside of the facility peak currents can be extended in time due to the additional inductance of the power line. A normal event may be 10 usec zero to peak, with a decay of 200 usec. These currents are called longitudinal. The Cisco surge protection cable will adequately prevent this transient damage from occurring to within the industry standards for lightning protection devices. A good equipment chassis protective ground is strongly recommended to assure adequate protection. EFT disturbances occur as a result of arcing contacts in electro-mechanical switches & relays commonly found in an industrial environment. The electro-mechanical switches are used to connect & disconnect inductive loads. Like ESD, EFT can be especially fatal on data & I/O lines. The fast rise time of the EFT pulses demand similar protection as ESD pulses. CONFIGURATIONS THAT ARE SUBJECT TO SURGE EVENTS There are several hardware configurations & applications that are more subject to damage from ESD events. These configurations include the following:
- Locations Subject to Electrical Storms-Any location where electrical storms are common is a good candidate site for surge protection on the serial ports;
- Unshielded Cables-If unshielded cables are used to connect to the serial port, it is much more likely that electrical discharges will be picked up by the cabling & damage the serial port;
- Long Cable Runs-The longer the cable, the more susceptible it is to surge events, even if the cable is shielded;
- Outside Wiring-If the cable runs outdoors, it is more susceptible to surge events;
- Different Earth Grounds-If the router & the device at the other end of the serial cable are connected to different earth grounds, then the cable can become a conduit for current that equalizes different ground potentials;
- Installations with Multiple Serial Port Failures-If an installation has experienced multiple serial port failures in the past, it is a good candidate for surge protection;





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The Cisco SPA 500S Expansion Module (Figure 1) is part of the Cisco Small Business Pro Series & designed for use with the Cisco SPA 500 Series IP Phones. It is an ideal solution for small businesses wanting to simplify incoming call handling by quickly directing calls to the requested party & also to monitor line status from a central location. The attendant console easily attaches to a SPA 500 Series IP Phone, providing 32 programmable speed-dial or direct station select (DSS) buttons, each illuminating the line's status (idle, ringing, busy, or null) via the BLF. Incoming calls can immediately be transferred to the proper location with the push of a button assigned to the extension. The modular design of the Cisco SPA 500S permits up to two attendant consoles to be deployed, for a total of 64 buttons, offering an affordable solution that expands with the growth of your voice network. Installation & setup is just a matter of connecting the supplied bracket & cable to the attendant console, which uses the phone's power supply; no additional power source is required. Based on the Session Initiation Protocol (SIP), the Cisco SPA 500S has been tested to ensure comprehensive interoperability with equipment from voice over IP (Vo IP) infrastructure leaders, enabling service providers to offer competitive, feature-rich services to their customers. Features
- 32 programmable multicolored LED buttons
- Illuminated line status monitoring (green for idle, red for in use, blinking red for ringing, orange for registration error)
- Call transfer
- Speed dial
- DSS
- Busy lamp field
- One-touch transfer
- Call pickup







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Highlights
- For business or home office use
- Dependable, Affordable & Feature Rich
- Full-featured 1-line business-class


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Simplify & improve communications companywide with Cisco SPA 500 Series IP Phones, part of the Cisco Small Business Pro Series of network solutions. These phones offer enough features to serve everyone from manufacturing floor staff & cubicle workers to executives & remote employees. Your people stay productive, & enjoy access to voice & data communications wherever they are, but your costs stay low. These affordably priced, reliable, & stylish IP phones are intuitive & easy-to-use. They also offer a rich user experience with wideband audio to connect employees & offices, application support to enhance productivity, & encryption for enhanced security. The SPA 500 Series delivers a versatile array of features with investment protection to help your small business succeed. Full-Featured IP Phones
- Wideband audio for unsurpassed voice clarity & enhanced speaker quality
- Monochrome or color backlit display for ease of use, aesthetics, & onscreen applications
- Connects directly to a hosted IP telephony service or an IP private branch exchange (PBX)
- Easy installation & highly secure remote provisioning, as well as menu-based & web-based configuration
- Supports up to two Cisco SPA500S 32-Button Attendant Consoles, adding up to 64 additional buttons
- Power over Ethernet (Po E)
- Supports both Session Initiation Protocol (SIP) for Cisco SPA9000, open source, & hosted telephony solutions & Smart Phone Control Protocol (SPCP) for Cisco Unified Communications 500 Series for Small Business
- Support for Bluetooth & Wi Fi
- Play back & view personal MP3 files & photos through on phone application








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Highlights
- Full-featured 12-line business-class IP phone supporting Power over Ethernet (Po E)
- Monochrome backlit display

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High-quality Voice & Fax over the Internet Now you can use your phone over the Internet, without compromising on voice quality or phone & fax features. The Cisco SPA112 2-Port Adapter offers the benefits of high-quality voice over IP (Vo IP) without the need to upgrade your existing analog phones. Easy to install & use, the SPA112 works over an IP network to connect analog phones & fax machines to a Vo IP service provider. It also provides support for additional LAN connections. The Cisco SPA112 is compact in design & compatible with international voice & data standards. It can be used with residential, home-office, & small-business-Vo IP service offerings, including full-featured hosted or open source IP PBX environments. The Cisco SPA112 2 Port Adapter:
- Uses advanced voice quality-of-service (Qo S) capabilities & the voice Session Initiation Protocol (SIP) stack.
- Supports reliable faxing with simultaneous voice & data use.
-

Includes:: two standard telephone ports, each with an independent phone number, for use with analog fax or phone devices.
- Is compatible with all industry voice & data standards & common telephone features such as caller ID, call waiting, & voicemail.





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The Cisco SPA302D Multi-Line DECT Handset is designed exclusively for use with the Cisco SPA232D Multi-Line DECT ATA, & together these products enable the convenience of a cordless on-premises mobility solution for voice-over-IP (Vo IP) service. The SPA302D is a mobility enhanced handset, designed primarily for business environments that require a cordless phone to support not just one but multiple telephone numbers or lines, providing a highly innovative Vo IP solution for users who tend to frequently move about their location but must always be reachable around the premises. The intuitive, easy-to-use menu structure on the Cisco SPA302D Handset means that you can easily navigate enhanced business call-control features, including multicall operation, & execute business-essential features such as call transfer, conferencing, hold, new call, mute, speakerphone, voicemail, intercom, & one-touch dial-out from call-history logs. Wideband audio provides unsurpassed high-definition voice quality & enhanced sound clarity while the high-resolution color screen provides clear visual information whether it is reflecting call status, displaying stored contact information from a private or shared phonebook, or configuring handset calling features. Superior performance & range along with highly efficient battery power usage based on DECT technology gives the SPA302D a distinct advantage & provides an affordable solution for customers who want to deploy on-premises mobility at a lower price point. You can purchase the Cisco SPA302D individually or bundled as the Cisco SPA302DKIT Multi-Line DECT Handset with Base Station, providing flexible options to add up to a total of five handsets when needed & enabling more users with on-premises mobility. The Cisco SPA302D & Cisco SPA232D are interoperable with many softswitch & SIP application servers (Broad Soft & Meta Switch) & open-source IP-PBX solutions (Asterisk), to provide highly configurable & secure remote provisioning capabilities to enable mass-scale Vo IP service provider activation & deployment. The Cisco SPA232D Multi-Line DECT ATA has an integrated DECT base station & is also an affordable, highly reliable voice gateway for connecting an analog phone or fax machine to a service provider; it can also intelligently route Vo IP calls to the public switched telephone network (PSTN) & vice versa. The Cisco SPA302D Multi-Line DECT Handset is ideal for any residential, home office, or business searching for an advanced, multiline cordless mobility solution with superior voice quality to boost efficiency for busy users who must be reachable whether they are in the office or elsewhere on the premises.
- Ability to make high-quality feature-rich business-quality Vo IP calls with cordless handset convenience.
- High-resolution color display with hands-free speakerphone & four-way menu navigation button.
- Superior performance & range along with highly efficient battery power usage based on DECT technology.
- Essential telephony feature support such as caller ID, call transfer, call waiting, call forwarding, three-way conferencing, call history, & private & shared phonebooks.
- Cost-effective, multiline on-premises mobility solution capable of registering up to five handsets to a Cisco SPA232D Multi-Line DECT ATA supporting four simultaneous active calls.
- Highly configurable & secure remote provisioning capabilities to enable mass-scale service provider activation & deployment.
- Ideal solution for residential, small office or home office (SOHO), & business environments.
- High-quality voice & business-grade feature support: The Cisco SPA302D Multi-Line DECT Handset together with the Cisco SPA232D Multi-Line DECT ATA offers an on-premises mobility solution that delivers clear, high-quality voice communication in diverse network conditions. Excellent voice quality in a demanding IP network is consistently achieved with our advanced implementation of standard voice-coding algorithms.
- Large-scale deployment & management: The Cisco SPA302D offers all the important features & capabilities which service providers can provide customized Vo IP services to their subscribers. It can be remotely provisioned & is software-upgradable. A secure profile upload saves providers the time, expense, & hassle of managing & preconfiguring or reconfiguring subscriber equipment for deployment. Service providers can remotely provision the SPA302D handset enabling subscribers to incrementally add SPA302D handsets at any time without the need to configure on-site.
- Outstanding security: The Cisco SPA302D supports highly secure, encryption-based methods for communication, provisioning, & servicing.
- Comprehensive feature set: The Cisco SPA302D is compatible with essential Internet Vo IP provider features such as caller ID, call waiting, call transfer, call forwarding, three-way conferencing, voicemail, & much more to provide a complete, affordable, & highly reliable Vo IP solution.
- Enhanced mobility: The integrated DECT base station of the SPA232D with exclusive support for Cisco SPA302D Multi-Line DECT Handsets provides a simple & reliable mobility solution for users that tend to frequently move about their location but must always be reachable around the premises.
- Easy installation & changes: The Cisco SPA302D menu display enables quick deployment & easy changes.
- Peace of mind: Cisco solutions deliver the solid reliability you expect from Cisco. All solution components have been rigorously tested to help ensure easy setup, interoperability, & performance.













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The Cisco SRW2008MP 8-Port Gigabit Switch is fully managed & brings Gigabit speeds to your users while adding a whole new level of intelligence & security to your network. The eight 10/100/1000 Mbps ports enable you to take advantage of the Gigabit Ethernet interfaces shipping on the current generation of servers, workstations, & storage devices, in addition to supporting existing 10/100 Mbps clients. The optional mini Gigabit Interface Converter (mini-GBIC) ports allow you to expand the network as your business grows. The Cisco SRW2008MP supports the IEEE 802.3af standard for Power over Ethernet (Po E). For applications where four or fewer Po E devices are being connected, the Cisco SRW2008MP is the ideal solution. It supports four ports at 15.4W per port (or eight ports at 7.7W). All ports have automatic load sensing circuitry that automatically detects Po E on the end device before providing power. The ports also feature independent overload & short-circuit protection, along with LED indicators for power status. As more business functions & processes migrate to the network, having an intelligent network becomes a necessity. The Cisco SRW2008MP is able to secure the network through IEEE 802.1Q VLANs, IEEE 802.1X port authentication, access control lists (ACLs), & MAC-based filtering. At the same time, the enhanced quality of service (Qo S) & traffic management features ensure clear & reliable voice & video communications. Having this additional capability is not useful if it cannot be implemented. Web View provides an intuitive, secure management interface, enabling you to better utilize the comprehensive feature set of the Cisco SRW2008MP, resulting in a better-optimized, more secure network. ...