1. REFERENTE TEÓRICO
4.1. La comunicación en la enseñanza de las ciencias naturales
4.1.3. El pensamiento y el lenguaje científico escolar
Business Series Terminals offer a feature-rich portfolio with enhanced capabilities that provide telephony solutions for a broad landscape of users, from high-volume call positions and executives to low-intensive users and small workgroups.
The Business Series Terminals are flexibly positioned for deployment on two system platforms – Norstar and BCM, providing both investment protection and a migration path between either system. The Business Series Terminals offer full integration with Norstar and BCM features, as well as integration with basic and advanced applications such as Messaging, Call Center, Computer Telephony Integration (CTI) and integrated voice and data solutions.
While the Business Series Terminals boast the industry leadership and strengths of the Norstar telephone portfolio, the portfolio also delivers value-added features, including:
• Tilt Display – provides clearer viewing of information or message prompts on the LCD in different lighting environments.
• Message waiting indication (MWI)/Visual ringing lamp – alerts the user of incoming messages or that their phone is ringing when they are on another call.
• Headset interface – is driven from the Digital Terminal Interface Chip (DTIC). Volume control for the headset is also provided. Operation of the headset is mutually exclusive, with handsfree operation. When a headset is connected, all operations normally associated with handsfree operation affect the headset. This includes on-hook dialing, volume control while active and muting.
• Handsfree interface – is programmed through the administration function and is supported by a microphone and loudspeaker.
• External ringer interface – receives alerting signals that are routed to the external ringer jack as well as to the speaker in the telephone. This alerting signal can be amplified and connected to external speakers to provide an auxiliary ringer function for the telephone. The external speaker is connected with a two-wire modular telephone cord to pins 3 and 4 of the external ringer jack.
The portfolio also offers tilt display, new aesthetics, a streamlined footprint, new labeling strategy, an audio control center with a headset button and more.
Sets are available in the following colors: • Platinum • Charcoal.
Overview of Portfolio
Overview of T7100 Figure 20.The T7100 telephone is part of the Business Series Terminals portfolio. It has one programmable button and a 1 x 16 character alphanumeric display to provide call progress information. There are no display buttons (soft keys) on the T7100 and it does not support headset or Handsfree.
T7100 supports the following features:
• External ringer interface
• Message waiting indicator/visual ringing lamp
• LCD with tilt Display – The one-line by 16-character display on the T7100 telephone provides call progress information. Each character is generated from a matrix of 5 x 7 LCD dots under control of a built-in controller chip on the module.
Button Matrix
The T7100 buttons are as follows:
• Volume control (rocker type)
• Hold button
• Release button
• Feature button
• One programmable button Loop Limits
• Maximum loop length – 305 m (1000 ft) or 0.5 mm (24AWG) wire
• Maximum loop length – 790 m (2600 ft) with SAPS option
• Bridge taps – not permitted
• Loading coils – not permitted. Overview of T7208
Figure 21.
The T7208 telephone is part of the Business Series Terminals portfolio. It has eight fully programmable buttons, each with its own LCD indicator and a 1 x 16 character alphanumeric display to provide call progress
information. There are no display buttons (soft keys) on the T7208. The T7208 supports the following features:
• External ringer interface
• Headset interface
• Handsfree interface
• LCD with tilt Display – The one-line by 16-character display on the T7208 telephone provides call progress information. Each character is generated from a matrix of 5 x 7 LCD dots under control of a built-in controller chip on the module.
Button Matrix
The T7208 buttons are as follows:
• Twelve dial pad buttons
• Volume control (rocker type)
• Hold button
• Release button
• Feature button
• Eight programmable buttons with indicators. Loop Limits
• Maximum loop length – 305m (1000 ft) of 0.5 mm (24 AWG) wire
• Maximum loop length – 790 m (2600 ft) with SAPS option
• Bridge taps – not permitted
• Loading coils – not permitted. Overview of T7316E
Figure 22.
The T7316E telephone is part of the Business Series Terminals portfolio. It has one programmable button and a 2 x 16 character alphanumeric display that is menu driven and supported by three context-sensitive soft keys. The
T7316E provides access to 24 memory buttons, 16 of which include multi-segment icons for fast and precise decision-making.
The T7316E supports the following features:
• BCM and Norstar compatible
• Multi-line w/multi-segment call appearance icons
• 16 programmable buttons for lines/features/autodials
• 8 additional memory buttons for features/autodials
• Expandable by adding T24 KIM
• Integrated BLF/DSS
• Fixed buttons: feature, hold, release
• Two-line adjustable display w/soft keys
• Built-in speakerphone
• Message Waiting Indication
• Time and date displayed
• Built-in headset
• Audio control center with mute, hands free, headset and volume bar
• Default features based on profiles
• Default line and hunt group assignment
• Retractable quick reference card
• Desk or wall mount
• Hearing aid compatible
• Desktop Assistant label application compatible
• ITU dial pad
• Colors: charcoal and platinum
• English and French keycaps (accessory)
• Extra length 2.7m handset cord (accessory)
Overview of BST Central Answering Position (T7316E + T24) Figure 23.
The BST Central Answering Position is an expandable desktop telephone that allows administrative assistants and emergency call centers the ability to centralize and efficiently distribute calls. By attaching the T24 Key Indicator Module (KIM) directly to the T7316E, office administrators and emergency call centers can transform the pace and efficiency of their operations while maintaining an exceptional level of customer service.
T24 Product features:
• BCM and Norstar compatible
• Multi-line with multi-segment call appearance icons
• 24 programmable buttons for lines/features/autodials
• Busy Lamp Field/Direct Station Select support
• Multiple appearances of hunt groups
• Multiple line appearances
• 4 T24’s per T7316E without power supply
• 9 T24’s per T7316E with power supply
• Desk or wall mount
The following table highlights configuration rules:
Enhanced KIM
(use KIM for multiple appearances of target lines)
Ordinary KIM (use KIM for BLF/DSS) Max # sets
per system Max # sets
Max # EKIM on each set EKIM (max #) Max # sets Max # OKIM on each set Max OKIM 96 12 4 48 84 9 756 BST Doorphone
This device enables office personnel to talk directly with visitors prior to their entering a business. When a visitor presses the Doorphone’s call button, the BCM rings the designated phone(s) in an office and allows two-way conversation. The optional Door Opening Controller enables any BST to control a latch on a door or gate. The BST Doorphone is supported on the BCM200/400.