Lei

Page 264 of 894 NT5D33 and NT5D34 Lineside E1 Interface cards

Table 97

LEI card – LEI backplane and I/O panel pinouts (Part 2 of 2)

Backplane	I/O Panel
connector pin	connector pin	Signal

17A	6	Away from MMI terminal, transmit
		data

17B	31	Toward MMI terminal, transmit
		data

18A	7	Toward MMI terminal, receive
		data

18B	32	Daisy chain control 2

19A	8	Daisy chain control 1

19B	33	Ground

Table 98 shows the pin assignments from the I/O panel relating to the pin assignments of the lineside E1 I/O cable.

Table 98

LEI card – lineside E1 I/O cable pinouts (Part 1 of 2)

I/O Panel			LEI
Connector			Connect	LEI Cable Connector to External
Pin	Lead Designations		or Pin	Equipment

1	E1	Tip Receive data	11
				DB15 male to E1 (P2). LEI is CPE
				transmit and receive to network

26	E1	Ring Receive data	3

2	E1	Tip Transmit data	1

27	E1	Ring Transmit data	9

3	Alarm out, common		1

28	Alarm out (normally open)		2	DB9 male to external alarm (P3)

553-3001-211 Standard 2.00 September 2004