Inter-Tel AXXESS Manual page 76

Specifications
® ®
INTER-TEL AXXESS
B. TRUNK CONNECTIONS
2.7
blocks, as required by FCC regulations. Cross-connect cable is used to connect the RJ-type
blocks to the CO terminal blocks on the MDF. The trunks are then connected to the Loop/
Ground Start Cards (LGCs) and/or Loop Start Cards (LSCs) using industry-standard, 25-pair
cable. Female 50-pin amphenol-type connectors on the cables attach to the male connectors on
the cards.
2.8
on RJ-type blocks that are then cross-connected to modular jack assemblies), as required by
FCC regulations. Two-pair, non-reversing, mod-to-mod line cord is used to connect each DID
trunk to the appropriate jack on the corresponding SLA.
2.9
jumpered to the MDF. Some CO connections are via the fallback system.
2.10 To help reduce electromagnetic interference (EMI) and radio frequency interference
(RFI), it may be necessary to equip the trunk cables with ferrite beads. (See
more information.)
2.11 With a U.S. system, T1 spans and Primary Rate Interface (PRI) spans are terminated on
telephone company RJ48C modular jacks (or on RJ-type blocks that are then cross-connected
to modular jack assemblies), as required by FCC regulations.
2.12 With a European system, Primary Rate Interface (PRI) spans are terminated on network
provider RJ48C line jack units (or on RJ-type blocks that are then cross-connected to line unit
assemblies).
2.13 Four-pair, non-reversing, mod-to-mod line cord is used to connect each T1 and/or PRI
span directly to the T1 or E1/PRI jack on the corresponding T1, E1/PRI, or T1/E1/PRI card.
(Or, to use the DB15 connector instead, see
2.14 Install gas discharge tubes with silicon avalanche suppressors on all non-T1/E1/PRI
trunks for lightning protection. (For T1/E1/PRI spans, the CSU itself provides the lightning
protection.) Also, in areas with frequent occurrences of lightning, the cable between the tele-
phone company [network provider in Europe] termination and the gas discharge tubes should
be at least 75 feet [22.5 meters] long (the cable may be coiled up if desired).
2.15 The Inter-Tel phone system has the following trunk characteristics:
Page 2-8
MANUAL VERSION 11.0 – May 2008
With a U.S. system, the CO trunks are terminated on telephone company RJ-type
Also, the DID trunks are terminated on telephone company RJ-type modular jacks (or
With a European system, CO [local exchange] trunks are terminated on the TJF then
Loss from:
CO to phone
CO to single-line set
CO to CO
Ringer equivalence
Ringing voltage
Ring frequency
Loop current
Tip-to-ring
page 3-36.)
Characteristics
0dB (@1 kHz, 0 ft)
0dB (@1 kHz, 0 ft)
0dB (@1 kHz, 0 ft)
0.6B
40VRMS minimum
17-63 Hz
18mA minimum
Protection
400V transient
paragraph 2.6 for
Trunk Connections