Programming instructions

37
Installation
3. Set the Message Link DIP switch to the appropriate position. See
page 267 for the location of the Message Link switch and Table 52 on
page 268 for settings.
4. Connect a fiber optic cable between the NSU and the controller FIMs.
5. If you are installing a secondary NSU, connect a crossover CAT 5
cable between CIM 1 of the secondary NSU and CIM 2 of the primary
NSU (see Table 55 on page 269 for CIM pinout, and Table 52 on
page 268 for message link dip switch settings).
6. Connect the NSU L0 and/or L1 port to the remote system (the PSTN
or another system). See Table 58 on page 270 for the pinout.
7. For the PRI and R2 protocols, program the NSU using IMAT (see
“Installing IMAT on the PC” on page 88 and “Using IMAT” on page 90).
Refer to the IMAT Online Help for more information.
8. Connect power to the NSU.
9. Using the System Administration Tool, program the NSU settings on
the controller. In the All forms (alphabetical) list, click Network
Services Unit Configuration. Refer to the Online Help for more
information.
Next: Install any other required services units. When all the services units
are installed, go to “Install Telephones and Peripherals” on page 51.
BRI Network Services Unit
Connect the BRI NSU to the controller via a Universal E1 MSDN NSU.
Refer to “Quad BRI Framer” on page 111 for installing embedded BRI.
1. Mount the BRI NSU.
2. Connect the BRI NSU E1 ports to the Universal NSU L0/L1 ports (see
Table 53 on page 268 and Table 58 on page 270 for pinouts).
Tip: The NSU software will not load until the NSU programming is complete
(see Step 9 below).
Tip: Program the Universal E1 NSU before connecting the BRI NSU.
Tip: Use a CAT 5 cable between the BRI NSU E1 port and the Universal
NSU that is running E1 DPNSS. Ensure that the pinout of the cable matches
that of the E1 connector (pins 4 and 5 are connected). A 4-wire CAT 5 cable
will only use pins 1, 2, 3, and 6.