Install The 3300 Bri Nsu - Mitel 3300 ICP Technician's Handbook

3300 ICP Technician's Handbook – Release 3.2
E1/MF-R2 Mode/Connector DIP Switch Setting
BNC Imp.
Adapt
Req'd
No 120
No 120
Yes 75
Yes 75
Note: Site dependent - normally Tx is grounded and Rx is not grounded,
but that depends on which remote connection is grounded.

Install the 3300 BRI NSU

To install the 3300 BRI NSU:
1. Configure the 3300 Controller E1 DPNSS on the 3300
Universal NSU that will be used to connect to the 3300 BRI
NSU.
2. Program the BRI-specific requirements for the E1 DPNSS
interface.
3. Set up the maintenance PC.
4. Complete the 3300 BRI NSU programming.
5. Connect power to the NSU.
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.
LT/NT 1
Mode Tx
Gnd
NT Up
LT Up
NT Note
LT Note
- 29 -
2 3
Rx 120
Gnd ohm
Up Down
Up Down
Note Up
Note Up
4 5
100 75
ohm ohm
Up Up
Up Up
Up Dow
n
Up Dow
n
6
LT/NT
Up
Down
Up
Down