GAI-Tronics 69320-001 User Manual

Pub. 42004-681L2A

GAI-TRONICS® CORPORATION

A HUBBELL COMPANY

Model 69320-001

Voice Network Ada pter

Confidentiality Notice

This manua l is provide d sole ly as an operatio nal, installation, and ma inte nance guide and conta ins se nsitive
business and technical information that is confidential and proprietary to GAI-Tronics. GAI-Tronics retains
all intellectual property and other rights in or to the information contained herein, and such information may
only be us ed in connection with t he op erat ion of your GAI-T ronics pr oduct or system. This ma nual ma y
not b e discl osed i n any f orm, in whol e or in part, directly or indirectly, to any third party.

General Information

The Model 69320-001 Voice Network Adapter (VNA) allows voice communication between
interconnected SmartSeries systems. It is installed in a 10457 Series Card Rack (Card Rack) and is
controlled by a 69254 Series or 69440 Series Master Control Unit (MCU) installed in that same card rack.
The VNA is designed exclusively for use in a SmartSeries system, and is not intended for use with other
types of equipment.

Description of Major Compo nents

Front Pa nel LEDs

The following table describes the LEDs mounted on the VNA’s front panel:

LED Status Description

ON LINE On The MCU is running and is configured to recognize the VNA.
Off

VNA FLT On

Off The “On” condition is not occurring.
MCU FLT On

Off The “On” condition is not occurring.

The VNA is not receiving power from the card rack or the MCU is not
properly configured to recognize the VNA.

The MCU has l o st communic ation w i th t he VNA. T he MCU and the VNA
continuously update hands haki ng inf ormation. I f the VNA is not updat ing that
information as the MCU expects, then the MCU turns on this LED.

The VNA has lost communi c ation w i th the MCU. The M CU and the VNA
continuously update handshaking information. If the MCU is not updating that
information as the VNA expects, then the VNA turns on this LED. This LED
may be On durin g maintenanc e of the MCU.

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LED Status Description

RAI/RYEL On

The VNA is receiving the T1 Yellow Alarm (Remote Alarm Indication), and is
not transmitting the T1 Yellow Alarm.

Flashing
90% On

Flashing
50% On

Flashing
10% On

The VNA both is receiving and is transmitting the T1 Yellow Alarm. The
frequency of flashing is approximately one Hertz.

The VNA is transmitting the T1 Yellow Alarm, and is not receiving the T1
Yellow Alarm. The freque ncy of fla shing is a pprox imately o ne Hertz.

The T1 transceiver on the VNA is not initialized. The frequency of flashing is

approxi mate ly one Hert z .
Off All of the above four conditions are not occurring.
AIS/RBL On

The VNA is receiving the T1 Blue Alarm (Alarm Indication Signal), and is not

transmitting the T1 Blue Alarm.

Flashing
90% On

Flashing
50% On

Flashing
10% On

The VNA both is recei ving and is transmitting the T1 Blue Alarm. The

frequency of flashing is approximately one Hertz.

The VNA is transmitting the T1 Blue Alarm, and is not receiving the T1 Blue

Alarm. The frequenc y of flashing is approxi ma tely one Hertz .

The T1 transceiver on the VNA is not initialized. The frequency of flashing is

approxi mate ly one Hert z .
Off All of the above four conditions are not occurring.
LOF/RLOS On

The VNA is n o t synchronized with t he receiv ed T1 si gnal (Loss of Fr ame or

Rece ive L oss of S ynchroniz ation), and d oes not detec t a s hort on its T 1

transmit line.

Flashing
90% On

The VNA both is not synchronized with the received T1 signal and detects a

short on its T1 t r ansmit line. The freque ncy of f l ashing is approxi matel y one

Hertz.

Flashing
50% On

Flashing
10% On

The VNA detects a s hort on it s T1 trans mit lin e, and is synchronize d with the

rece ived T1 si gnal. The fre quency of f l ashing is approxima tely one H ertz.

The T1 transceiver on the VNA is not initialized. The frequency of flashing is

approxi mate ly one Hert z .
Off All of the above four conditions are not occurring.
LOS/RCL On

The VNA is n ot rec e ivi n g a T1 signal ( Loss of Signal or Receive Carr ier

Loss), and does not detect an open on its T1 transmit line.

Flashing
90% On

Flashing
50% On

Flashing
10% On

The VNA both is not receiving a T1 signal and detects an open on its T1

transmit line. The freque ncy of flashing is approx imat e ly one Hertz .

The VNA detects an open on its T1 transmit line, and is receiving a T1 signal.

The frequency of flashing is approximately one Hertz.

The T1 transceiver on the VNA is not initialized. The frequency of flashing is

approxi mate ly one Hert z .
Off

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All of the above four conditions are not occurring.

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Connections to the Fi eld Wiring Te rminal Bl ocks

69320-001 Voice Ne twork Adapter Connect ions to the Field Wiring

Connections to the field are made via the upper DB25 connector on the rear of the 10457 Series Card Rack
assembly. This connector may be utilized by a direct connection of a DB25 cable to the field equipment, a
DB25 cable to a DIN rail-mounted terminal block adapter, or with the use of a DB25-to-RJ45 connector
adapter. The pinout definition for the DB25 connection is shown is the table below.

Upper DB25 Connector

Pin Signal

1 Tx (ring)
2 Tx (tip)
5 Rx (ring)
6 Rx (tip)

Included with the VNA are two DB25-to-RJ45 connector adapters. The 21246-014 Connector Adapter
brings the transmit pair to the RJ45 pins 1 & 2 and the receive pair to pins 4 & 5. The 21246-008
Connector Adapter brings the transmit pair to the RJ45 pins 4 & 5 and the receive pair to pins 1 & 2. These
adapters permit the use of non-crossover Ethernet cables for the connections to field equipment utilizing
these same pins on an RJ45 connector.

Cabling to the field equipment should be a twisted pair design.

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Switch and J umper Settings

Overview

Several switch and jumper settings are required for proper operation of the VNA Card. The following
settings are set during the system commissioning and programming and should not be changed. If replacing
an existing 69266-001 T1 card or VNA card for maintenance purposes, then be sure to replicate the switch
and jumper setting of the card being replaced. Refer to Figure 1 for the switch and jumper locations.

Front Panel DIP Swi tch (SW2) Sett ings

NOTE: The front panel D IP switches (SW2 ) may b e u pdat e d with out poweri ng down th e card r ack and
without resetting the MCU.

Position Number Name

Top 1 Line Build 0 (LB0)

2 Line Build 1 (LB1)
3 Line Build 2 (LB2)
4 Receive Equalizer G ain Limit
5 Lamp Test
6 Customer Disconnect Enable
7 Local Loop Back

Bottom 8 Remote Loop Back

The Line Build # switches control the “line build” (signal’s amplitude) of the T1 transmit line. Set the Line
Build # switches according to the following table:

LB0 LB1 LB2 T1 Line Length

Open Open Open DSX-1 (0 to 133 feet) / 0 dB CSU
Open Open Closed DSX-1 (133 to 266 feet)
Open Closed Open DSX-1 (266 to 399 feet)
Open Closed Closed DSX-1 (399 to 533 feet)
Closed Open Open DSX-1 (533 to 655 feet)
Closed Open Closed -7.5 dB CSU
Closed Clos ed Open -15 dB CSU
Closed Closed Closed -22.5 dB CSU

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The R eceiv e Equalizer Gain Limit s witch c ontrols the similarly named featu re of t he T1 transc e iver. Set
the Receive Equalizer Gain Limit switch according to the following table:

Open
Closed

-36 dB (long haul)

-15 dB (limited long haul)

The Lamp Test s witch t u rns on all LEDs on t he VNA ’s front p anel. I t is used during produc tion of th e
VNA. The Lamp Test switch will not function when the VNA det ects th e MCU (MCU FLT LED is Off).
Set the Lamp Test switch according to the following table:

Open
Close

All front panel LEDs function normally.
All front panel LEDs are ON

The Customer Disconnect function presents a well-behaved signal on the T1 line. This signal is sometimes
useful during troubleshooting and verification. Set the Customer Disconnect Enable switch according to the
following table:

Open
Closed

The T1 transceiver is operating normally.
The Customer Disconnect signal is being transmitted on the T1 line. This setting disrupts the

T1 signal and the MCU reports a T1 line fault.

The Loc al Loop Back featu re sometimes is used during troubleshoot ing. Set the L oc al Lo op Back s w itch
according to the following table:

Open
Closed

The T1 transceiver is operating normally.
The “Framer Loopback” feature of the T1 transceiver is enabled. The T1 transceiver transmits

the Blue Alarm on the T1 transmit line during this condition. This setting disrupts the T1 signal
and the MCU reports a T1 line fault. This setting causes the VNA to receive the T1 signal it
normally would transmit, while actually transmitting the Blue Alarm.

The Remote Loop Back feature sometimes is used during troubleshooting. Set the Remote Loop Back
switch according to the following table:

Open
Closed

The T1 transceiver is operating normally.
The “Remote Loopback” feature of the T1 transceiver is enabled. This setting disrupts the T1

signal and the MCU reports a T1 line fault. This setting causes the VNA to transmit its received
T1 s ignal. The T1 standards me ntion two types of lo opbacks: “line ” and “pa yload”; this
loopback is a “line” loopback.

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