Avaya MCC1 Installation And Upgrades page 680

Install and Administer Trunks
Add TN1654 DS1 Converter (r only)
TN1654 DS1 Converter Switch Settings
up
down
1 Although the TN1654 circuit pack supports 75 ohms, use the 127A BALUN to convert the 120
ohms to 75 ohms rather than the switch settings (see
Figure 274: 127A BALUN Coaxial Adapter
4
4
Figure notes
1 127A BALUN coaxial adapter
2 Connect to quad cable (H600-348 or
similar)
3 BCN Connections to E1 network
equipment
680
1 2 3
T1 120 ohms 120 ohms
ESF ESF
1
E1 75 ohms 75 ohms
D4 D4
3
5
4 5
120 ohms 120 ohms
ESF ESF
75 ohms 75 ohms
D4 D4
75-ohm E1 Interface Cabling
2
4 Single-point ground connection
2
5 0.75 mm (18 AWG) ground wire
to ground terminal at MDF
SI Installation and Upgrades
6
Enabled
Disabled
on page 678).
1
h1df127b KLC 012301
June 2004