GAI-Tronics IPE2500A, IPE2500A-MLS Paging Encoder / Desktop Controller User and Installatoin Manual - Manual (Page 45)

IPE2500A and IPE2500A-MLS Paging Encoder/Desktop Controller Installation
39 03/12
Line Connection
Connect the telephone line to the modular connector located on the back of the desk set. Refer to the
pinout on page 6 of the “Connectors” section of this manual. Observe right to left pinout for pins 1
through 6.
The six-pin modular jack is a full/half duplex connection to the line. CARD Suite allows selection of a
four-wire type of connection to the line. In the two-wire mode, the hybrid will be auto-balancing. A
maximum of 10 desk sets can be connected in parallel. The maximum loss between any two desk sets or
between a desk set and the station should not exceed 20 dB.
Desk sets are shipped with line terminations active. With parallel units connected, only the farthest desk
set units should be terminated.
Line Considerations - Private Circuit
If leased lines from your local telephone company are used between the desk sets and the tone remote
adapter, the telephone company (Local Exchange Carrier) may request a Facility Interface Code (FIC).
The FIC is subject is to local availability.
Analog Facility Interface Code
FIC Description
02NO2 Two-wire private line; no signaling conversion by LEC (IN-Band)
02NO4 Four-wire private line; no signaling conversion by LEC (IN-Band)
Metallic Two- or four-wire metallic private line (“tip, ring, and sleeve circuits”)
Within a manufacturing plant, a campus, or large building, customer-supplied ‘metallic pairs’ may be
used. It is not necessary to have dc continuity on these lines.
Circuit Conditioning
The desk set is designed to work with good-quality analog speech band or leased private circuit. This
was previously known as ‘basic’ conditioning under Series 2000/3002 service. The line must be
non-PSTN (no dial tone, talk-battery, or signaling).
This equipment falls under the Category II, Tariff #260 Service and is exempt from FCC Part 68
registration. (Ref. FCC Form 730 Application Guide pages 1–5.)
For two-wire operation over long lines, 2000 Series lines may be used with or without conditioning. C1
or C2 conditioning is available for these lines and relates to the envelope delay distortion and attenuation.
A basic conditioned line may be used if it is the only type available. Overall system quality is limited by
the quality of extremely long non-conditioned lines (copper).