ATT System 25 Reference Manual
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HARDWARE DESCRIPTION 420 Speakerphone Voice Terminal (Not Orderable) The 420 Speakerphone voice terminal (Figure 4-7) is a single-line analog set that can be desk or wall mounted. The 420 Speakerphone set can no longer be ordered. It has the following components and features: l l l l l l lHandset Touch-Tone Dial Built-In Speakerphone Twelve Memory Buttons (where emergency numbers and frequently called numbers can be stored for quick calling) Six Fixed Feature Buttons — Program - For entering the memory button programming mode — Redial - For recalling the last number dialed — Flash - For generating a timed switchhook flash — Mute - For turning off the speakerphone microphone temporarily for privacy — Hold (with status LED) - For putting calls on hold — Speaker (with status LED) - For making speakerphone calls and for turning on the speaker during handset calls Tone Ringer Three Volume Controls (tone ringer, speaker, handset receiver). Adjuncts: None 4-21
HARDWARE DESCRIPTION MEMORY BUTTONS PROGRAM BUTTON FLASH BUTTON HOLD BUTTON AND LAMP SPEAKERPHONE BUTTONAND LAMP MUTE BUTTON RINGER VOLUMESPEAKER CONTROLVOLUME CONTROLRECEIVER VOLUME CONTROL Figure 4-7.420 Speakerphone Voice Terminal Single-Line Voice Terminal Connection Information Single-line voice terminal connection information is provided under the “Connectivity” heading later in this Section. Maximum cabling distances from the system cabinets to single-line voice terminals is provided in Section 5, “Technical Specifications.” Single-Line Voice Terminal Feature Operations Refer to Single-Line Teminal User Guide (555-530-702) for information about single-line voice terminal feature operation. 4-22
HARDWARE DESCRIPTION Multiline Voice Terminals The recommended multiline terminals for System 25 is the ATL cordless telephone and the 7300H Series hybrid sets that are also used with the MERLIN Communications System. Multibutton Electronic Telephone (MET) sets already available to the customer can be reused in a System 25 installation but are not orderable. Multiline voice terminals have programmable buttons that can be assigned for handling calls and for controlling features.Many of these buttons are supported by red I-Use and green status indicators (LEDs) that provide users with information about calls and features. Fixed (non-programmable) feature buttons allow users to control standard features such as Hold, Conference (except ATL cordless), and Transfer. Multiline terminals can have several calls active at the same time depending on the number of buttons programmed for placing and receiving calls. For example, the user can be talking on one call, have one or more calls on hold, and still receive ringing on incoming calls. Transmission to and from the terminals is hybrid: an analog pair for voice and two digital pairs for control signals.Port circuits (ZTN79 ATL Line CP for MERLIN System and ATL cordless sets and TN735 MET Line CP for MET sets) provide interface between the terminals and the digital switch. The pushbutton dials on MERLIN System terminals and ATL cordless telephones are not touch-tone; they send digital signals to the system switch and are referred to in terminal descriptions as a touch dial pads. MET sets have touch-tone (DTMF) dials. The following subsections provide descriptions and illustrations of the multiline voice terminals supported by System 25. 4-23
HARDWARE DESCRIPTION 7302H01D Voice Terminal (5-Button) (PEC 3160-111) The 7302H01D voice terminal (Figure 4-8) can be desk or wall mounted and is about 5-3/4 inches wide, 5-1/4 inches high, and 8-1/2 inches deep.The set comes equipped with the following: l l l l l l l lHandset Touch Dial Pad (not DTMF) I-Use and Status LEDs Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for programming feature buttons) Built-in Speaker Speaker/Ringer Volume Control Six Fixed Feature Buttons Conference Hold Drop Speaker Transfer Recall Five Programmable Feature Buttons (each equipped with I-Use and Status LEDs); default assignments are System Access (2), Repertory Dialing (2), and Last Number Dialed (1). Adjuncts: None Note:This set does not have a Message button or Message LED. 4-24
HARDWARE DESCRIPTION HANDSET PROGRAMMABLE TEST/PROGRAMBUTTONS (5) SWITCHWITH I-USE AND (ON SIDE)STATUS LEDs SPEAKER/RING VOLUME CONTROL (ON SIDE) Figure 4-8. 7302H01D Voice Terminal (5-Button) 4-25
HARDWARE DESCRIPTION 7303H01D Voice Terminal (10-Button) PEC 3161-172 The 7303H01D voice terminal (Figure 4-9) can be desk or wall mounted and is about 7 inches wide, 5-1/4 inches high, and 8-1/2 inches deep. The set comes equipped with the following: l l l l l l l lHandset Touch Dial Pad (not DTMF) I-Use and Status LEDs Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for programming feature buttons) Built-in Speaker Speaker/Ringer Volume Control Seven Fixed Feature Buttons (* = with status LED) ConferenceSpeaker* DropMessage* Transfer Recall Hold Ten Programmable Feature Buttons (each with I-Use and Status LEDs); default assignments are System Access (2), Repertory Dialing (2), Flex DSS (3), Send All Calls (1), Account Code Entry (1), and Last Number Dialed (1). Adjuncts: l 502B Headset Adapters Note:The 502B unit provides HFAI service on the headset. l S102A Speakerphone (PEC 3163-HFU). 4-26
HARDWARE DESCRIPTION PROGRAMMABLE BUTTONS (10) TEST/PROGRAM SWITCHWITH I-USE STATUS LEDs (ON SIDE) HANDSET TOUCH DIAL PAD SPEAKER/RING VOLUME CONTROL (ON SIDE) MESSAGE AND Figure 4-9. 7303H01D Voice Terminal (10-Button) 4-27
HARDWARE DESCRIPTION 7305H01D Voice Terminal (34-Button) (MD) (PEC 3162-412) The 7305H01D voice terminal (Figure 4-10) can be desk or wall mounted and is about 10-1/4 inches wide, 5-1/2 inches high, and 8-1/2 inches deep. This set is available only on a reuse basis and is not orderable via the Delivery Operation Support System (DOSS) Configurator. The set comes equipped with the following: l Handset l Touch Dial Pad (not DTMF) l I-Use and Status LEDs l Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for programming feature buttons) l Built-in Speaker l Speaker/Ringer Volume Control l Seven Fixed Feature Buttons (* = with status LED) ConferenceSpeaker* DropMessage* Transfer Recall Hold l 34 Programmable Feature Buttons (only ten with I-Use and Status LEDs); default assignments are System Access (2), Repertory Dialing (2), Flex DSS (27), Send All Calls (1), Account Code Entry (1), and Last Number Dialed (1). Note:Programmable buttons without LEDs should be used only for features that do not require I-Use and/or status indications. Adjuncts: l 502B Headset Adapters Note:The 502B unit provides HFAI service on the headset. l S102A Speakerphone (PEC 3163-HFU). 4-28
HARDWARE DESCRIPTION I-USE/STATUS LEDs PROGRAMMABLE HANDSET BUTTONS (34) Figure 4-10. 7305H01D Voice Terminal (34-Button) (MD) 4-29
HARDWARE DESCRIPTION 7305H02D Voice Terminal (34-Button Deluxe) (PEC 3162-417) The 7305H02D voice terminal (Figure 4-11) is available for general use and as a Direct Trunk Attendant Console. The voice terminal is about 10-1/4 inches wide, 5-1/2 inches high, and 8-1/2 inches deep. It comes equipped with the following: l Handset l Touch Dial Pad (not DTMF) l I-Use and Status LEDs l Test/Program Switch (two positions: T for testing operation of LEDs and ringer; P for programming feature buttons) l Built-in Speaker l Speaker/Ringer Volume Control l Seven Fixed Feature Buttons (* = with status LED) ConferenceSpeaker* DropMessage* Transfer Recall Hold l 34 Feature Buttons (each equipped with I-Use and Status LEDs) For General Use: — All programmable; default assignments are System Access (2), Repertory Dialing (2), Flex DSS (27), Send All Calls (1), Account Code Entry (1), and Last Number Dialed (1). For Use as a Direct Trunk Attendant Console: — Six predefined: Start, Cancel, Release, Return-On-Don’t-Answer, Return-On- Busy, and Alarm. — Other 28 programmable;default assignments are System Access (2), Repertory Dialing (2), Flex DSS (1), Account Code Entry (1), Attendant Message Waiting (1), Night Service (1), trunk appearances (15 as Personal Lines**), Group Call Coverage (1), Direct Facility Access† (3), and Last Number Dialed (1). ** On the first Attendant Console, the first 15 trunks in the system are assigned button appearances on the console. If there are fewer than 15 trunks, the remaining buttons are not assigned. On the second Console, these trunks do not receive default assignments. 4-30