Installation overview
Installing the Vision VS 5000 Server
10
NMS
Communications
The following table summarizes the steps required for installing the Vision VS 5000
Server:
Step
Action
1
Refer to the
Netra 240 Server Quick Start Guide
for information about installing the Vision VS
5000 Server.
2
Make a good low impedance connection to earth ground. This is required because DS-1
connections can be susceptible to lightning strike or power cross before a power source is
provided for the device. Ensure that T1 connections are behind a channel service unit (CSU).
Refer to
Connecting to a T1 network
on page 10 for information.
3
Provide a power source for the server.
For DC servers, you must use a ferrite block for each DC power cable. Refer to the ferrite block
kit (NMS P/N 2850-34098) that is shipped with the server.
4
Connect a laptop or workstation to the server's serial management (ALOM) port to reconfigure
the server IP address for your network. For information, refer to
Connecting to the serial
management (ALOM) port
on page 12.
5
Connect the server's Ethernet 0 to the IP network. For information, refer to
Connecting the
server's Ethernet interface
on page 14.
6
If appropriate, connect two VS 5000 servers for redundancy. For information, refer to
Connecting VS 5000 Servers for redundancy
7
Connect device signaling link (trunk) interfaces. For information, refer to
Connecting signaling
link (trunk) cables
Once installation is complete, configure the Vision VS 5000 Server as described in
the
Vision Signaling Server Configuration and Administration Manual
. For information
about accessing this manual, refer to
Accessing Vision documentation
Connecting to a T1 network
For typical T1 communications, each signaling link (trunk) interface connects to a
channel service unit (CSU), which is connected to a T1 trunk line. The CSU provides
a DSX-1 interface to the T1 line, and also contains circuitry that enables the central
office (CO) to perform diagnostic tests remotely.
The following illustration shows the Vision Server signaling link (trunk) interface with
the CSU:
C S U
D S X - 1
i n t e r f a c e
T 1
t r u n k
P u b l i c s e r v i c e
t e l e p h o n e n e t w o r k
V i s i o n
S e r v e r
You can purchase or lease the CSU from the telephone company or other vendor.
Warning:
The cables attached to this product must be isolated by a channel service unit (CSU)
before the cables leave the building.
To avoid causing T1 service provider alarms, make sure that the Vision Server
always sends a valid signal, either by looping back at the CSU or by connecting the
CSU to a functioning Vision Server. The best way to provide a loopback is to unplug
the cable from the Vision Server to the CSU. The modular connector on most CSUs
loops back the transmit signal to the receive signal when nothing is plugged in.
