Lucent Technologies Release 6 manual TN464E/F Option Settings

DEFINITY Enterprise Communications Server Release 6	Issue 5
Installation and Test for Multi-Carrier Cabinets 555-230-112	May 1998
B Option Switch Settings
TN464E/F Option Settings	Page B-12

TN464E/F Option Settings

The TN464E/F DS1/E1 Interface - T1/E1 circuit pack interfaces between a 24 or 32 channel Central Office/ISDN or tie trunk and the TDM bus.

Set the switches on the circuit pack to select bit rate and impedance match. See Table B-8 and Figure B-3.

Table B-8. Option Switch Settings on TN464E/F

120	Ohms	Twisted pair
75	Ohms	Coaxial requiring 888A adapter
32	Channel	2.048 megabits per second
24	Channel	1.544 megabits per second

10 4

9

1	2
5	7
6	8
	3

Figure Notes
1.	Backplane Connectors	6.	120 Ohm (shown selected)
2.	24/32 Channel Selector	7.	24	Channel (shown selected)
3.	75/120 Ohm Selector	8.	75	Ohm
4.	Faceplate	9.	Connector
5.	32 Channel	10.	TN464E/F DS1/E1 Interface Circuit Pack

Figure B-3. TN464E/F Option Settings