Option Switch Settings
TN464GP/2464 Option Settings
760
SI Installation and Upgrades
June 2004
TN464GP/2464 Option Settings
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The TN464GP/2464 DS1/E1 Interface-T1/E1 circuit pack interfaces between a 24 or 32 channel
CO/ISDN or tie trunk and the Time Division Multiplexing (TDM) bus.
Set the switches on the circuit pack to select bit rate and impedance match. See
Table 41
and
Figure 299,
TN464GP/2464 Option Settings,
on page 760.
Figure 299: TN464GP/2464 Option Settings
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Table 41: Option Switch Settings on TN464GP/2464
120 ohms
Twisted pair
75 ohms
Coaxial requiring 888A adapter
32 channel
2.048 Mbps
24 channel
1.544 Mbps
Figure notes
1
Backplane Connectors
2
24/32-Channel Selector
3
75/120-ohm Selector
4
Faceplate
5
32 Channel
6
120 ohm (shown selected)
7
24 Channel (shown selected)
8
75 ohm
9
Connector
10
TN464GP/2464
3
8
4
9
5
10
1
6
2
7