Wiring Analog Telephony (Pots) Taps - Vidicode APRESA Installation Manual

Call recorder

Hide thumbs Also See for APRESA:

Table of Contents

5.5.

Wiring ANALOG TELEPHONY

Wiring ANALOG TELEPHONY (POTS)

Wiring ANALOG TELEPHONY

The interface card that is used to make POTS taps is the ATP-card. See chapter 13.1 for the

specification and the connections of this type of interface card.

Wire taps of POTS-type telecom lines always involves

the APRESA the polarity of the signal is irrelevant and can be ignored during wiring. The wiring-

type used to install the analog telephone system can very different as we see in the field:

Old fashioned twisted pair;

•

Normally there are even 2 twisted pairs in the cable. The primary telephone is on the

RED/GREEN pair and the secondary telephone (if any) is on the BLACK/YELLOW pair.

4 wire modular cable with RJ11 modular plugs (RJ11=6P4C);

•

The inner 2 wires carry the signal of the primary telephone, while the outer two are used for

the secondary telephone (if any).

8 wire modular cable (CAT5) with RJ45 modular plugs and the possible use of (standard)

•

patch panels.

This cable type is preferred for all new installations because of low cross talk figures. The

cable contains 4 twisted pairs. Each twisted pair can connect a telephone. We see 1 or 2

telephones on these cables in the field. Technically however this cable can connect 4

individual telephones.

The installation needed is straight forward as all POTS extensions that must be recorded must be

connected (by 2 wires) to an individual recording channel of the ATP interface card of the APRESA.

The analog/POTS wiring taps can be realized in 3 ways:

1. Direct wiring of the RJ21 connector of the interface card (pinning see above)

2. With the RJ11 patch box

3. With the RJ45 patch box

(POTS) TAPS

(POTS)

TAPS

two

active wires per tapped telephone. For

Table of Contents