Mitel 3300 Technician's Handbook page 70

3300 ICP Technician's Handbook
Next: Install any other required services units. When all the services units
are installed, go to "Install Telephones" on page 64.
BRI Network Services Unit
Connect the BRI NSU to the controller via a Universal E1 MSDN NSU.
Refer to "Quad BRI Framer" on page 171 for installing embedded BRI.
Tip: Program the Universal E1 NSU before connecting the BRI NSU.
1. Mount the BRI NSU.
2. Connect the BRI NSU E1 ports to the Universal NSU L0/L1 ports (see
Table 32 on page 255 and Table 36 on page 257 for pinouts).
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 1, 2, 4 and 5 are connected). A 4-wire CAT 5
cable will only use pins 1, 2, 3, and 6.
3. Connect the BRI NSU to the ISDN devices using a 25-pair cable. See
Table 38 on page 259 for the pinout.
4. Connect the BRI NSU to the maintenance PC:
a. Connect the RS-232 port (RJ-45 connector) on the BRI NSU to a
serial port on the PC.
b. Set up the communications program on COM port 1 or 2 with the
following parameters:
- Baud Rate: 9600
- Data Bits: 8
- Parity: None
- Stop Bits: 1
- Flow Control: XON/XOFF
- Character Set: ASCII
5. Connect power to the BRI NSU.
6. On the PC, program the BRI NSU using a VT100 emulator (see TB
#58004741, "Basic Setup Guide for the MC268 BRI card").
Tip: Although the TB is written for the SX-2000 system, the parameters
described are also applicable to the 3300 BRI NSU.
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