Mitel 5760 VC Specifications Page 83

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3300 ICP General Information Guide
75
Network
Lines
The 3300 ICP supports the following types of internal voice lines:
A 10/100BaseT Ethernet connection is required for Mitel Networks IP telephones to connect
through an Ethernet LAN to a 3300 Controller. These lines are supported by the 3300 controller.
On-Premises (ONS) lines (24V per port) are for industry-standard DTMF or rotary dial
telephones. The external loop resistance on an ONS line must be 600 ohms or less, and the loop
length must be 5000 ft (1500m) or less on 26-gauge wire. These lines are supported by the 3300
Universal ASU, the 3300 ASU and the ONS line card in the Peripheral unit or MICRO LIGHT.
Note: Rotary dial telephones are not supported by the 3300 Universal ASU or the 3300 ASU.
Off-Premises (OPS) lines (48V per port) are for industry-standard telephones where the external
loop resistance exceeds 600 ohms or where lightning surge protection is required. The maximum
resistance on an OPS line must be 1800 ohms or less, and the loop length must be 19,000 feet
(5800 meters) or less on 26-gauge wire. These lines are supported by the OPS line card and are
only available if a Peripheral unit or MICRO LIGHT is installed.
Digital Network Interface (DNI) lines provide an interface for Mitel Networks digital telephones,
and consoles. The maximum loop resistance on a DNI line must be 280 ohms or less, and the
loop length must be 3300 feet (1000 meters) or less on 26-guage wire. These lines are
supported by the DNI Line card and are only available if a Peripheral unit or MICRO LIGHT is
installed.
Trunks
The system can connect to the Public Switched Telephone Network (PSTN) or to private networks
over both digital and analog trunks.
The following digital links are supported:
DS1 Links -The system supports D4, Q.Sig, MSDN/DPNSS, Primary Rate ISDN (DM-250, DMS-
100, Bellcore National ISDN, 4ESS, NI-2, 5ESS NI2, NI13), and XNET over PRI protocols. The
system connects to DS1 links through the 3300 Universal NSU or the DS1 Formatter card in the
DSU cabinet or MICRO LIGHT.
E1 Links -The system supports DASS II, MSDN/DPNSS, Q.Sig, Primary Rate ISDN (Euro ISDN
(CTR4)), and XNET over PRI protocols. The system connects to E1 links through the 3300
Universal NSU or the CEPT Formatter card in the DSU cabinet or MICRO LIGHT.
R2 Links -The system supports the CCITT Blue Book, Volume IV, Fascicle VI.4, Specifications of
the Signaling System R2, Recommendations Q.440 to Q.490 (with the exception of Echo
Suppression (Q.479), Test Calls (Q.490) and international signals). The system connects to R2
links through the 3300 R2 NSU.
PRI Links -The system supports DM-250, DMS-100, Bellcore National ISDN, 4ESS, NI-2, 5ESS
NI2, NI13, and Euro ISDN (CTR4) protocols. The system connects to PRI links through the 3300
Universal NSU or the PRI card in the DSU cabinet or MICRO LIGHT.
BRI Links -The system supports Euro ISDN 2B + D, Basic Rate Interface, or the North American
ISDN-1 and ISDN-2 protocols. The system connects to BRI links using a DPNSS link from a
Universal NSU or CEPT Formatter card through the 3300 BRI NSU or the BRI card in the DSU
cabinet or MICRO LIGHT.
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