Table 2. Db-9 Connector Pin Descriptions - ADTRAN SHDSL E1 Installation And Maintenance Practice

Shipping Contents
The contents include the following items:
• SHDSL T1/E1 NTU
• SHDSL T1/E1 NTU Installation and Maintenance
Practice
CAUTION
Electronic modules can be damaged by ESD.
When handling modules, wear an antistatic
discharge wrist strap to prevent damage to
electronic components. Place modules in
antistatic packing material when transporting
or storing. When working on modules, always
place them on an approved antistatic mat that is
electrically grounded.
Instructions for Installing the Module
All connections of the SHDSL T1/E1 NTU are made
through card edge connectors. The module operates in a
standalone chassis, or the ADTRAN HR12 HDSL
chassis.
Pin
No. Name
1 109
2 104
3 103
4 108/2
5 102
6 107
7 105
8 106
9 ---
61225236L1-5A

Table 2. DB-9 Connector Pin Descriptions

Function
RLSD Received Line Signal Detect - Internally connected to DTR and DSR
RD Receive Data from DCE
TD Transmit Data to DCE
DTR Data Terminal Ready - Internally connected to RLSD and DSR
SGND Signal Ground
DSR Data Set Ready - Internally connected to RLSD and DTR
RTS Ready to Send - Internally connected to CTS
CTS Clear to Send - Internally connected to RTS
NC Not Connected
Issue 1, August 2003
When the module is installed in any of the NTU enclo-
sures, all connections are made through the enclosure
backplanes. Ensure chassis ground is properly
connected for either standalone or chassis-mounted
applications.
The SHDSL T1/E1 NTU is designed for a T200 or T400
type form factor housing and inserts into the customer
T1 or E1 T200 type equipment. Follow local practice
for installation of the SHDSL T1/E1 NTU.
The front panel provides LED status indicators for data
port, test, and alarm conditions.
The local management port is a DB-9 female connector
and is labeled V.24, with pinout and interchange circuits
per ITU-T V.24 standards.
management port DB-9 pinouts.
LED Indicators
The front panel of the SHDSL T1/E1 NTU has five
LED status indicators.
tions.
Interchange Circuit
Table 2 illustrates the local
Table 3 lists the LED descrip-
3