
NETWORKED TRUNK PORT
INTRODUCTION
The VIP-820 networked trunk port allows an analog
PBX Station Port to be connected to a managed IPbased Local Area Network ( LAN) or Wide Area
Network (WAN).
SPECIFICATIONS
Access Methods
• PBX Station port (FXS) with open loop
disconnect signal provided
Features
• RJ-45 for network connection
• RJ-11 telephone connection
• Front panel activity LED
• Network activity LEDs on RJ-45
• 4 RENS
• 2.5mm jack for DC power (115VAC TO 24VDC
adapter provided)
VIP-820
fully protected Extention /Station Port (FXS) port,
which is fully protected interface device. Also, the
host system must be configured to disallow central
office trunk conferencing in order to prevent indirect
connection to the public network.
Precautionary Designations
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock,
Refer servicing to qualified service personnel.
Do not remove cover.
No user serviceable parts inside.
ISSUE 3
Dimensions/Weight
• 1.88" H x 5.50" W x 4.15" D
(4.78cm H x 13.97cm W x 10.54cm D)
• Weight: 0.55 lbs. (0.25 kg)
Nominal Specifications
Input Impedance: 600 Ohms
Input Level: -10dBm
Output Impedance: 600 Ohms
Output Level: - 10dBm nominal
Nominal Power Requirements
Voltage: 24VDC
Current: 325mA
Environment
Temperature: 0 to +40 Degrees C
Humidity: 0 to 85% non-precipitating
INSTALLATION
NOTE: The telephone system referred to in this
manual is the customer premise equipment such as
an electronic key system, a PBX or a dedicated single
line telephone sets. The VIP-820 is not intended for
direct or indirect connection to the public telephone
network. When used with a customer premise
telephone system such as a key system or PBX
system, these units are interfaced to the system via a
This symbol indicates that dangerous
voltage constituting a risk of electric
shock is present within this unit.
This symbol indicates that there are
important operating and maintenance
instructions in the literature accompanying
this unit.
Mounting
The VIP-820 was designed for wall or table mounting.
Secure unit to wall studs or a suitable brace away
from heat sources or strong magnetic fields (motors,
fans, power supplies, etc.) with the control and
terminal strip accessible. One wood screw is included
for mounting.
Power Connections
NOTE: This equipment must be installed near an
AC power outlet due to the power cord being used
as a disconnect device.
• The VIP-820 is provided with a VP-324 for North
American use.
After all required connections have been made,
plug the VP-324 into appropriate AC wall outlet.
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PABX Access
When using the VIP-820 with a PBX, the VIP-820
must connect to
a station port.
Operation
Dial the station access code (PBX) to connect to the
VIP-820. The VIP-820 automatically disconnects
signal must be provided by the PBX station port.
Application Examples
Use the VIP-820 with a PBX Analog Station Port (FXS) and a VIP-800 to interface the telephone system to Valcom
powered speakers over a network. When the PBX station port is accessed, the VIP-820 will activate the VIP-800.
When the VIP-820 sees an open loop disconnect signal from the PBX Station Port, the VIP-820 will release.
Analog Station Port
Network
PBX
OR
KEY SYSTEM
VIP-820
LAN
OR
WAN
The VIP-820 Networked Trunk Port module can be used to create a multi-zone paging system from one Station Port
of a PBX using existing corporate WAN. It provides up to 99 zones with two digit selection. When the VIP-820 sees
an open loop disconnect signal from the PBX Station Port, the VIP-820 will release.
VIP-800
PBX
OR
KEY SYSTEM
LAN
OR
WAN
Analog Station Port
Network
VIP-820
VIP-800
VIP-800
VIP-800
The VIP-820 Networked Trunk Port module makes it a snap to connect two or more PBX systems over
the corporate WAN. It provides station to station PBX access, eliminating the need to use expensive trunk
connections that are typically required by other competitive products. When the VIP-820 sees an open
loop disconnect signal from the PBX Station Port, the VIP-820 will release.
Fax
nalog Station Port
nalog Station Port
Telephone
Telephone
PBX PBX
Telephone
Telephone
Network
VIP-820 VIP-820
LAN
OR
WAN
2
Telephone
Telephone
Fax
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TECHNICAL ASSISTANCE
When trouble is reported, verify power is being
supplied to the unit and there are no broken
connections. Check voltages for proper polarity to the
one-way amplified speakers. Table 1 identifies
symptoms of some possible problems with solutions.
If a spare unit is available, substitute a spare unit for
the suspected defective unit.
Assistance in troubleshooting is available from the
factory. Call (540) 563-2000 and press 1 for Technical
Support or via email at support@voip.valcom.com.
When requesting assistance, you should include all
available information. It is strongly suggested that you
go to the web site and follow the trouble resolution
procedure at http://voip.valcom.com.
Valcom equipment is not field repairable. Valcom,
Inc. maintains service facilities in Roanoke, VA.
Should repairs be necessary, attach a tag to the unit
clearly stating your company name, address, phone
number, contact person and the nature of the
problem. Send the unit to:
Valcom, Inc.
Repair & Return Dept.
5614 Hollins Road
Roanoke, Va. 24019-5056
TABLE 1: TROUBLESHOOTING CHART
SYMPTOM PROBABLE CAUSES AND SOLUTIONS
1. No output to
speakers
A. Check for the presence of audio on the page outputs of the VIP-820 during a
page using a test set. Refer to installation section for connection information.
B. Check the DC voltage at the output of the VP-324. It should be 20 to 28VDC.
2. No music output A. Using a test set, check for music on the music input terminals.
B. Check that speakers are connected to page outputs.
Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and service
VALCOM LIMITED WARRANTY
for a period of one year from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or
refund of any such defective device within the warranty period, provided that:
1. inspection by Valcom, Inc. indicates the validity of the claim;
2. the defect is not the result of damage, misuse or negligence after the original shipment;
4. freight charges for the return of products to Valcom are prepaid;
This warranty is in lieu of and excludes all other warranties, expressed or implied, and in no event shall Valcom, Inc. be
liable for any anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection
with the purchase, operation or use of the product.
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the
carrier should be notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the
F.O.B. point.
3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened (a
service charge plus parts and labor will be applied to units defaced or physically damaged);
5. all units ‘out of warranty’ are subject to a service charge. The service charge will cover minor repairs (major
repairs will be subject to additional charges for parts and labor).
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