Lantronix 6310 Series, Инструкция по установке

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Lantronix
x6310 ION POTS Media Converter User Guide
33818 Rev. A https://www.lantronix.com/ Page
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3 Operation
Power the S6310 Module
Note
: The external AC power supply provided with this product is UL listed by the power supply’s manufacturer.
See the SPS-UA12DHT webpage.
Loop-Start Operation
Loop-start service (‘Plain Old Telephone Service’ or POTS) is the primary analog signaling method used between
telephone switches such as the Central Office (CO) and a telephone device. Loop-Start provides a way to indicate
on-hook and off-hook conditions, which facilitates outgoing and incoming calls in a voice network.
When a customer wants to make an outgoing call, the customer takes a telephone device off-hook. This action
completes the loop, which signals the CO that a customer desires to use the telephone line. To signal the
customer of an incoming call, the CO applies a ring voltage to alert the customer.
The three states of the Loop-Start signaling protocol are described below:
Idle State (On-hook)
1. The CO applies a battery voltage to the ring lead and monitors the tip-ring current for closure of the tip-ring.
2. The telephone device draws less than 10 μ A of current from the line.
Telephone In-use (Off-hook)
1. The customer takes the telephone device off-hook, drawing a minimum of 20 mA of current.
2. The CO senses the tip-ring current and issues a dial tone on the line.
3. Communication can now begin.
Central Office (CO) Rings the Telephone
1. The CO places an AC pulse-ringer voltage on top of the -48VDC ring lead signal.
2. The telephone device uses the AC pulse-ringer voltage to operate the ringer, which alerts the customer of an
incoming telephone call.
3. The customer takes the phone off-hook, which closes the tip-ring connection and allows the tip-ring current to
flow.
4. The CO senses the DC current level and connects the call to the telephone line.
5. Communication can now begin.
Copper Cable—Category 1
ISO/IEC 11801; TIA/EIA 568-B Standards
Cable types: Shielded (STP) or unshielded (UTP) twisted pair is acceptable.
Maximum Cable Length: 5 km (3.1 mi)
CAUTION : Use of controls, adjustments or the performance of procedures other than those specified herein may
result in hazardous radiation exposure.