Filter
Top Products
Installing
Release 3.3 135
Setting Up the Maintenance PC
To install, configure, and maintain the 3300 BRI NSU, you must connect it to a maintenance
computer. The computer must be running DOS and have a communications program (such as
ProComm Plus ©) installed.
To connect a maintenance PC to the 3300 BRI NSU:
1. Using the RJ45 to 9-pin D-type MMI cable, connect the RS-232 port on the 3300 BRI NSU
to COM port 1 or 2 on the PC.
2. Set up the communications program on COM port 1 or 2 with the following parameters:
9600 baud, 8 data bits, no parity, 1 stop bit, ASCII character set, and XON/XOFF flow
control.
NSU Chaining
NSU chaining refers to the physical connection of two NSUs together, on one fiber interface,
from the Controller. BRI NSUs may not be chained.
To connect two NSUs to the Controller:
1. Connect the first NSU to the controller through a fiber connection from the fiber port on
the NSU to the fiber port on the 3300 Controller.
2. Using a CAT5 crossover cable make a connection from CIM2 on the first NSU to CIM1 on
the second NSU.
3. Connect power to the NSU.
Install the 3300 Universal ASU
Before you begin, ensure that there is a free CIM port on the 3300 Controller.
To install the 3300 Universal ASU:
1. Mount the 3300 Universal ASU in the 19-inch rack (if applicable).
2. Connect the supplied Cross-over Category 5 cable with RJ-45 connector to the CIM port
on the 3300 Universal ASU and a free CIM port on the 3300 Controller. Note that up to
four ASUs can be connected to the 3300 Controller.
Note: The 3300 BRI NSU is set for 75 ohms impedance when connected to a digital
trunking NSU running E1 DPNSS. The 3300 Universal NSU is also set for 75 ohms
impedance.
Note: A Category 5 connection from the 3300 BRI NSU E1 port to a 3300 Universal NSU
that is running E1 DPNSS. E1 connections as TX and RX pairs in RJ-45. Option to ground
one side of TX and or RX (using DIP switch) to use with coax adapter.
Note: The 3300 BRI NSU is connected to an appropriate device (such as a PSTN or
ISDN device) from a 25-pair Amphenol connector.
Note: The first NSU must have the Message Link dip switch set to 1, up. The second
NSU must have the Message Link dip switch set to 2, down.