Avaya Nortel Communication Server 1000 Reference page 213

3. a second DB9 male connector (P5), which connects to an MMI terminal or modem
4. a DB9 female connector (P4), which connects to the next LEI's P4 connector for
In a coaxial E1 installation, make the connection from the I/O panel to the E1 link and other
external devices through the NT5D36AA lineside E1 I/O cable.
This cable consists of a 25-pair amphenol connector (P1) on one end which plugs into the I/O
panel. The other end has 4 connectors:
1. a DB15 female connector (P2) with an adapter that breaks out Tx (transmit) and Rx
2. a DB9 male connector (P3), which plugs into an external alarm system
3. a second DB9 male connector (P5), which connects to an MMI terminal or modem
4. a DB9 female connector (P4), which connects to the next LEI's P4 connector for
Table 93: LEI card - LEI backplane and I/O panel pinouts
assignments of the LEI backplane and I/O Panel.
Table 93: LEI card - LEI backplane and I/O panel pinouts
Backplane
connector pin
12A
12B
13A
13B
14A
14B
15A
15B
16A
16B
17A
17B
18A
18B
Circuit Card Reference
MMI daisy chaining
(receive) connectors, which that plug into the E1 line
MMI daisy chaining. The Tx marking on the adapter at P2 is the LEI output. The E1
data stream coming from the network into the LEI connects at the Rx coaxial
connector
I/O Panel connector
pin
1
26
2
27
3
28
4
29
5
30
6
31
7
32
on page 213 shows the pin
Signal
E1 Tip, Receive data
E1 Ring, Receive data
E1 Tip, Transmit data
E1 Ring, Transmit data
Alarm out, normally open
Alarm out, common
Alarm out, normally closed
No connection
No connection
Away from MMI terminal, receive data
Away from MMI terminal, transmit data
Toward MMI terminal, transmit data
Toward MMI terminal, receive data
Daisy chain control 2
Installation
July 2011 213