Nortel 1000 Installation And Commissioning Manual page 239

Inspect the NTAK10 circuit card
Inspect the circuit card before installing it in the Option 11C Cabinet or
Media Gateway:
•
•
Set the switches
The NTAK10 incorporates four surface mounted dip switches. The following
tables provide information on the various settings and related functions of
these switches.
Set the switches on the circuit card according to the requirements of your
installation.
Switch S1 - Clock Controller (CC) configuration
This switch enables and disables the onboard Clock Controller (CC).
Table 84
Switch S1
Switch
S1-1
S1-2
Switch S2 - Carrier impedance configuration
This switch sets the carrier impedance to either 120
cable is usually associated with 120
with the 75
Table 85
Switch S2
Switch
S2-1
S2-2
Copyright © 2003-2007, Nortel Networks
.
Locate the NTAK10 2.0 Mb circuit card and carefully remove it from its
packaging.
Inspect the circuit card for any visible damage that occurred during
shipping.
Note: The ON position for all the switches is toward the bottom of the
card. This is indicated by a white dot printed on the board adjacent to
the bottom left corner of each individual switch.
Off (Up)
Spare
Clock Controller
Enabled
/ setting.
3
4
Off (Up)
120 /
3
4
75 3 /
4
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Install DTI hardware 239
On (Down)
Spare
Clock Controller
Disabled
3 /
3 / . Coaxial cable is usually associated
4
On (Down)
75 /
3
4
120 3 /
4
or 75 3 / . Twisted pair
4 4