SpectraLink Corporation
Installation, Configuration, and Administration
NetLink Telephony Gateway
Part Number: 72-0065-02-R.doc
Page 17
5.
Telephone Interface Configuration
The customer or the customer's wire contractor is responsible for adhering
to all local codes for wiring.
5.1
Prepare Demarcation (Demarc) Blocks
The NetLink Telephony Gateway is connected to the existing telephone system
using RJ-21 connections. A NetLink Telephony Gateway is designed to operate with
a specific interface to the telephone system: two-wire digital, two-wire analog, or
four-wire digital. A four-wire system may require two demarc blocks.
Based on the number and type of interfaces in the system, determine the number of
25-pair cables required to connect telephone line ports to the demarcation blocks.
If the wiring between the NetLink Telephony Gateway and the telephone
system leaves the building, consult your telephone system manual for
instructions on providing adequate lightning and other over-current
protection.
All NetLink Telephony Gateways (except the TGA116) are intended only
for connection to the isolated side of an on-premises PBX or key system.
The interfaces are intended to connect to digital PBX ports that provide
signals of 5Vp-p (max) AC components. Some PBXs provide a 48 V DC
offset.
Modem administration
The NetLink Telephony Gateway can also be accessed remotely using its internal
modem and a dedicated telephone line. If your site will use administration by
modem, this connection should be included in the wiring installation.
5.2
Install Telephone Demarc Blocks
The demarcation blocks used to connect the telephone system to the Telephony
Gateway should be installed on ¾
inch telephone facility backboard.
Although this
manual uses 66-blocks as examples, any standard cross-connect blocks are
acceptable.
5.3
Assign and Program Telephone Ports
The wire contractor should inform the system administrator which telephone line
numbers have been designated for the wireless devices and the remote diagnostics
modem line.
The system administrator must assign extension numbers associated with the
wireless devices and plan the functions (trunk access, toll restrictions, system
features, ringing options, etc.) to be programmed. This programming will be done
after the wireless devices are assigned to the NetLink Telephony Gateway, but will
be faster if planned in advance by verifying the parameters and features on the
current telephone system and wired phones.