Nortel ATM E3, Manual, Page: 20 / 30

ATM T3/E3 PMC Module Supplement
1-4
313889-A Rev 00
Tools and Cables
To install the ATM T3/D3 PMC module into the Passport 5430 you need a Phillips
screwdriver and the following equipment:
• Two 75 ohm mini-SMB to BNC adapters (part of the shipping contents)
• Two 75 ohm coaxial cables
Setting AC or DC Coupling
If differences in ground potential exist throughout your cabling, you can designate
AC or DC coupling for the transmitting and receiving interfaces. You do this by
removing or installing a jumper head on the jumper pins associated with these
interfaces
(Figure 1-2) .
Figure 1-2. Location of the Jumper Pins
J2 J1
J1
T3E3010
J2
TX RX
2
1
1 = Jumper pins configured
for DC coupling
2 = Jumper pins configured
for AC coupling