Paradyne Single T1 Network Access Module (NAM)... User manual
TM
1
9161 Single T1 Network Access Module (NAM)
Installation Instructions
Document Number 9161-A2-GN10-40
December 1998
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Select
Service & Support
→
Technical Manuals
→
T1 Access Multiplexers.
Select the following document:
9161-A2-GH30
Model 916x/926x T1 Access Mux Technical Reference
To request a paper copy of a Paradyne document:
Within the U.S.A., call 1-800-PARADYNE (1-800-727-2396)
Outside the U.S.A., call 1-727-530-8623
Before You Begin
Make sure you have:
An operable T1 network connection
An async (VT100-compatible) terminal emulator
Housing and other associated hardware
Applicable cables
Package Checklist
Verify that your package contains the following:
T1 NAM and associated I/O card
Network Interface Cable (14 ft.)
V.35 Interconnect Cable (1 ft.)
DB9 COM Port Cable (14 ft.)
Affidavit Requirements for Connection to Digital Service
496-15149
2
Safety Instructions
Please read the EMI warning and Important Safety Instructions in the Technical
Reference or in the installation document that you received with your housing.
!HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICES
This product is designed to protect sensitive components from
damage due to electrostatic discharge (ESD) during normal
operation. When performing installation procedures,
however, take proper static control precautions to
prevent damage to equipment. If you are not sure
of the proper static control precautions, contact
your nearest sales or service representative.
Available Options
The following options are separately orderable:
RJ48C modular cable for network access (20 ft.)
RJ48H T1 mass termination cable (5 ft.) for connecting seven T1 NAMs to an M66
block
What Does a T1 NAM Do?
The T1 NAM acts as an interface between the T1 digital network and the customer
premises equipment, converting signals received from the DTE to bipolar signals that
can be transmitted over T1 and Fractional T1 lines. The T1 NAM also provides a
DSX-1 drop and insert port to allow DTEs supporting the DS1 signal format to share
the network T1 with other high-speed equipment, as well as two synchronous data
ports. Typical applications include:
Wide Area Networks (WANs)
Channel extension
Video teleconferencing
3
Cables You May Need
The following cables and connectors are specifically for this product. See
Warranty,
Sales, and Service Information
on page 15 for ordering information. See the Technical
Reference for all cable pin-out information.
If connecting to a . . . You need a . . .
Terminal/printer (DB25
interface/connector – EIA-232
connection)
COM Port-to-Terminal/Printer cable (14 ft.)
PC (DB9 interface/connector –
EIA-232 connection) COM Port-to-PC cable (14 ft.)
DTE with a V.35
interface/connector MS34 to DB25 adapter cable for each port: Port 1
and/or Port 2 (1 ft.)
DTE with a RS-449
interface/connector DB37 to DB25 DTE adapter cable for each port:
Port 1 and/or Port 2 (1 ft.)
DTE with a V.11/X.21
interface/connector DB15 to DB25 adapter cable for each port: Port 1
and/or Port 2 (1 ft.)
LAN Adapter COM Port-to-LAN Adapter cable (14 ft.)
Modem (8-pin
modular-to-DB25 connector) Modem cable
Recommended Order of Installation
1. First, install the I/O card.
2. Connect all cables into the I/O card.
3. Install the NAM.
4. Go to the appropriate housing installation document for power-up verification
procedures:
—
2-Slot Housing Installation Instructions
(Document No. 9000-A2-GN15)
—
5-Slot Housing with AC Power Supply Installation Instructions
(Document
No. 9000-A2-GN16)
—
5-Slot Housing with DC Power Supply Installation Instructions
(Document
No. 9000-A2-GN1C)
—
9000 Series Access Carrier Installation Instructions
(Document No.
9000-A2-GN1D)
NAM
Rear Panel
SINGLE
T1 NAM
NET
DBM
DSX
PORT 1
PORT 2
COM
NET
DBM
(For
Future
Use)
DSX
Port 1
Port 2
COM
98-15050-03
4
Tools Required
A small Phillips screwdriver (#1 or #2) to install the T1 NAM
A small, flat-blade screwdriver to install the:
— I/O card
— Cable connections
Installing the I/O Card
The NAM’s I/O card provides the COM port, network, DSX and
DTE connections. The I/O card inserts directly behind the NAM
that it supports. Slot numbers are identical (in this case, Slot 01)
to facilitate correct installation.
1. Remove the I/O card from the shipping box. Handle only
by the top and bottom edges to avoid damaging the card.
2. At the rear of the housing, align the I/O card with the
upper and lower tracks of the slot. Push gently towards
the midplane until it stops and you cannot push the card
any further.
97-15748a
Screws RearView
Screws
2-Slot5-Slot
Screws
Access Carrier
3. There are two captive screws on the I/O card. Using a
screwdriver, alternately tighten each screw until the
screws are all the way in.
COM
SINGLE
T1 NAM
NET
DBM
DSX
PORT 1
PORT 2
Port 1
98-15054-02
DTE
Cable
DTE
Cable
V.35, RS-449,
V.11/X.21
Adapter Cable
DTE
DTE Port 2
5
Connecting to the Network
1. Insert the 8-pin connector on the
RJ48C network cable into the NET
interface.
2. Insert the other end of the cable into
the RJ48C modular jack.
Connecting to a DTE
If the DTE cable type is
V.35, RS449, or V.11/X.21
(separately orderable):
1. Connect the plug to the
V.35, RS449, or V.11/X.21
end of the adapter
cable (as appropriate).
2. Connect the EIA 530A
end of the adapter cable
to PORT 1 or PORT 2.
If the DTE cable type is
EIA-530A:
1. Connect the EIA-530A
end of the DTE cable to
PORT 1 or PORT 2.
RJ48C
Jack
SINGLE
T1 NAM
NET
DBM
DSX
NET
98-15053-02
6
Connecting to the DSX
1. Insert the DB15 end of the DSX
cable into the DSX interface.
2. Insert the other end of the cable
into the CPE (Customer Premises
Equipment, such as a PBX).
Connecting the COM Port to a User Interface
1. Insert the 8-pin end of the cable into the COM port.
2. Insert the other end of the cable into the user interface (VT100-compatible terminal
emulation) connector.
3. Press Return on the keyboard to display the Main Menu. If you need to configure
for other than a direct link, see the Technical Reference.
Set the speed of the async (VT100-compatible) terminal so
it matches the NAM's factory-loaded data rate of 19.2 kbps,
character length set to 8, parity set to None, and stop bits
set to 1. The flow control should be set to None or
Hardware.
PORT 2
COM
COM
496-15052-01
COM Port-to-Terminal/Printer
Cable or
COM Port-to-PC Cable
*
*
SINGLE
T1 NAM
NET
DBM
DSX
PORT 1
DSX
98-15055-02
PBX
7
Installing the T1 NAM
In both the 2- and the 5-slot housings, the NAM is always installed in Slot 01. The NAM
can be installed in any slot in the access carrier.
!WARNING:
Do NOT remove any jumpers located on the battery. To do so can cause
non-volatile memory loss. Should a jumper become separated from the
battery, contact your service representative immediately.
CAUTION:
Be sure that you install the NAM in the correct slot so that it mates with its
matching I/O card. Otherwise, you could damage your card.
1. Remove the housing’s bezel, if applicable. See the housing installation instructions
for information.
2. Remove the NAM from the shipping box. Handle only by the top and bottom edges
to avoid damaging the card.
3. At the front of the housing, align the NAM with the upper and lower tracks of
the appropriate slot.
2-Slot
Ejector
Latches
98-15750-01
Ejector
Latches
FrontView
5-Slot
Ejector
Latches
Access Carrier
4. Slide into the tracks until the NAM seats with the midplane connectors. Be careful
not to force the card or bend any pins.
5. Close both the upper and lower ejector latches on the housing to lock in place,
then tighten the captive screws on the ejector latches.
6. Replace the housing’s bezel, if applicable.
8
Removing/Replacing a Card
Card removal procedures differ, depending on whether you are removing the card from
the front or rear of the housing.
If you are removing the . . . Then go to . . .
NAM
Removing/Replacing the NAM
.
I/O card
Removing/Replacing the I/O Card
.
Removing/Replacing the NAM
1. Remove the housing’s bezel, if applicable. See the housing installation instructions
for information.
2. Remove the captive screws from the ejector latches on front of the housing.
3. Press open the ejector latches to disengage the card.
4. Supporting the card by its edges, pull straight out until the card clears the housing.
5. Align the replacement card with the upper and lower tracks of the slot. Slide
forward until the NAM seats. Be careful not to force or bend any pins.
6. Close both the upper and lower ejector latches on the housing to lock in place,
then tighten the captive screws.
7. Replace the housing’s bezel, if applicable.
Removing/Replacing the I/O Card
1. Remove the NAM from the housing (see
Removing/Replacing the NAM
).
2. Remove the network, DSX-1, DTE, and COM port cables from the I/O card (if
applicable).
3. Using a screwdriver, loosen the upper and lower screws fastening the card to the
housing’s frame.
4. Gently pull the I/O card away from the midplane until it clears the housing.
5. Align the replacement I/O card with the upper and lower tracks of the slot. Push
gently towards the midplane until it stops and you cannot push the card any further.
6. Alternately tighten each captive screw until the screws are all the way in.
7. Reattach the cables as appropriate.
8. Reinstall the NAM.
Power-Up
Go to your housing instructions to perform power-up, if needed. The housing
instructions also contain troubleshooting information.
2–OK
OK
ALM
TST
BKP
SIG
OOF
ALM
SIG
OOF
ALM
1–OK
9161
IN
OUT
IN
OUT
IN
OUT
IN
OUT
NET DSX NET MON DSX MON NETWORK DSX PORT
496-15051
Test
Jacks
LEDs
9
Front Panel LEDs and Test Jacks
The T1 NAM has 12 LED (light-emitting diode) status indicators and four sets of test
jacks.
Test Jacks
The NAM contains four sets of test jacks. Use these for:
Monitoring and testing towards the Network 1 interface
carrier
Monitoring and testing towards the Network 2 interface
carrier
Refer to
Troubleshooting and Maintenance
in the Technical
Reference for more information on the test jacks.
General Status LEDs
Label Indication Color What It Means
OK Power and
Operational
Status
Green ON – NAM has power
and is
operational.
OFF – NAM is in a
power-up
self-test, or there
is a failure.
CYCLING – The unit is in
Minimum mode.
Requires an FTP
download.
ALM System
Failure/
Self-Test
Red ON – NAM has just
been reset, or an
error or fault has
been detected.
OFF – No failures have
been detected.
TST Test Mode Yellow ON – Loopback or test
pattern in
progress,
initiated locally,
remotely, or from
the network.
OFF – No tests are
active.
BKP Backup Yellow Not supported. Remains
off except during a Lamp
Test.
10
Network and DSX Interface LEDs
Label Indication Color What It Means
SIG Signal Green ON – A recoverable signal is present on
the network/DSX interface.
OFF – The signal cannot be recovered
from the network/DSX interface. An
LOS condition exists.
OOF Out of Frame Yellow ON – At least one OOF was detected
during the sampling period.
OFF – No OOFs were detected during the
sampling period.
ALM Alarm Yellow ON – An alarm condition is present on the
network/DSX interface.
Current alarm conditions:
Loss of Signal (LOS)
Loss of Frame (LOF)
Excessive Error Rate (EER)
Yellow Alarm
Alarm Indication Signal (AIS)
OFF – No alarm condition is present on
the network/DSX interface.
Port 1 and Port 2 LEDs
Label Indication Color What It Means
1-OK
2-OK Operational
Status Green ON – The interchange circuits for the port
are in the correct state to transmit
and receive data.
OFF – The port is idle. Occurs if the port is
disabled, if an EDL Out of Frame or
EER condition is present, if a DCLB
is active, or if the port is configured
to monitor DTR and/or RTS and the
lead(s) is not asserted.
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1
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