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Summary of Contents for Pantong LTS-48
- Page 1 USER MANUAL TELEPHONE TEST SET DATA SAFE...
- Page 2 The safety condition is not to connect Test Set to public electrical power lines ( 220/110 VAC ) 1. GENERAL The Handset Portable Test Telephone employs technology in integrated circuit design to provide both DTMF (Touch Tone) and dial pulse output for both a).Public telephone network of voice service, and b).
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Page 3: Specifications
3. SPECIFICATIONS: General Spec 2.2 K Ω at 48 VDC (20 mA loop current) Loop Resistance Talk Mode Resistance 200Ω typical at 20 mA Monitor Mode Resistance 120 KΩ at 1 KHz Pulse Dial Output Rate 10 PPS Percent Break 58 –... -
Page 4: Controls And Indicators
4. CONTROLS AND INDICATORS 4.1 Handgrip controls ( Figure 2 ): TALK/RING/MONITOR Switch. This three-position slide switch is located under the handgrip just above microphone. The switch is labeled as MONITOR for high impedance monitoring, RING for ringer , and TALK for off-hook In the MONITOR position, the Handset is a high impedance coupling to the ... - Page 5 5.2 Dialling ( select signalling to be dialed by PULSE/TONE switch, often set to TONE) • Move the TALK/RING/MONITOR switch to the MONITOR position then connect the lead clips to the telephone line. Listen to receiver (ear piece) to verify that the line is idle ( silent) •...
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Page 6: Warranty
5.5 MUTE. Is toggle button located together with PROG button and use to cancel microphone to transmitting voice, By this microphone off user can also have clearer sound on receiver when operate in the noisy area. 5.6 Last Number Redial ( repertory memory) The last number dialled can be automatically redialled with the PULSE/TONE switch set to either PULSE or TONE.