Page 276 of 906 NT5D33 and NT5D34 Lineside E1 Interface cards
553-3001-211 Standard 3.00 August 2005
Table 103 shows the pin assignments from the I/O panel relating to the pin assignments of the lineside E1 I/O cable.
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 103
LEI card – lineside E1 I/O cable pinouts (Part1 of 2)
I/O Panel
Connector
Pin Lead Designations
LEI
Connect
or Pin
LEI Cable Connector to External
Equipment
1E1 Tip Receive data 11
DB15 male to E1 (P2). LEI is CPE
transmit and receive to network
26 E1 Ring Receive data 3
2E1 Tip Transmit data 1
27 E1 Ring Transmit data 9
3Alarm out, common 1
28 Alarm out (normally open) 2DB9 male to external alarm (P3)
Table 102
LEI card – LEI backplane and I/O panel pinouts (Part2 of 2)
Backplane
connector pin
I/O Panel
connector pin Signal