GE JungleMUX SONET 86447 User manual

Technical Practice
and
Installation Manual
Copyright GE Power Management 2001
©
342
342- -86400 86400- -447PS 447PS
Issue 1
Issue 1
March 1994
March 1994
86447 LS DATA UNIT
JungleMUX
JungleMUX
SONET
SONET Multiplexer Multiplexer
GE Power
Management
Technical Practice
and
Installation Manual
Copyright GE Power Management 2001
©
342
342- -86400 86400- -447PS 447PS
Issue 1
Issue 1
March 1994
March 1994
86447 LS DATA UNIT
JungleMUX
JungleMUX
SONET
SONET Multiplexer Multiplexer
GE Power
Management
GE Power
Management

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March 1994
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TABLE OF CONTENTS
SECTION PAGE
1. INTRODUCTION ............................................... 5
Related Publication and Documentation Support............................ 5
Handling and packing......................................................................... 6
2. UNIT OVERVIEW ............................................... 7
3. FRONT PANEL FEATURES .............................. 8
LED Indications......................................................................................... 8
Push-Button (ACK) ................................................................................... 8
Craft Interface Jack .................................................................................. 8
4. UNIT DESCRIPTION.......................................... 9
Transmit Signal Path................................................................................9
Receive Signal Path................................................................................. 10
Control Signals ........................................................................................ 10
Micro-Processor Operation..................................................................... 11
5. INSTALLATION................................................. 13
Preinstallation.......................................................................................... 13
Shelf Position........................................................................................... 13
Power Requirements............................................................................... 13
Paddle Board Connections..................................................................... 14

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SECTION PAGE
6. CONFIGURATION............................................. 16
Unit Setup................................................................................................. 16
Monitors.................................................................................................... 17
Unit Monitoring ........................................................................................ 18
7. MAINTENANCE and TROUBLESHOOTING.... 20
F1 Help...................................................................................................... 20
Alignment ................................................................................................. 20
Troubleshooting ...................................................................................... 20
8. UNIT PARAMETERS......................................... 21
RS-232 Signal Conversion......................................................................21
RS-232 Signal Support............................................................................ 21
Data Transitions....................................................................................... 22
End-to-End Delay..................................................................................... 22
9. SPECIFICATIONS............................................. 23
Physical.................................................................................................... 23
Electrical................................................................................................... 23
Environmental.......................................................................................... 23
Mechanical ............................................................................................... 24
EMI/RFI...................................................................................................... 24
Isolation.................................................................................................... 24
Reliability.................................................................................................. 24
10.ORDERING INFORMATION............................. 25
Equipment and Option Code List........................................................... 25

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SECTION PAGE
APPENDIX A.........................................................26
List of Figures..........................................................................................26
List of Tables............................................................................................26
APPENDIX B.........................................................27
List of Acronyms .....................................................................................27
List of Acronyms (continued)................................................................. 28

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1. INTRODUCTION
The 86447 LS DATA unit is one of the family of channel units in the Lentronics
JungleMUX digital transport/access system designed specifically for the
requirements of the utility industry using optical fiber transmission.
This manual explains how to operate, install and maintain the LS DATA unit. A
unit description and block diagram is included which details the operation of the
unit.
Engineering documentation includes EAS schematics for all unit circuitry.
Related Publication and Documentation Support
Additional information is provided in the 86400 Technical Overview and
Reference Manual for system planning and engineering. The user may also find
useful information contained in other 86400 Technical Practice and Installation
Manuals.
Customer inquires for information contained in this manual should be directed to
JungleMUX Product Line Management. GE Power Mangement appreciates
notification of any possible errors or omissions contained herein.
Shipped with all purchased systems is a Node Assignment Drawing which
provides necessary configuration details for the units. Channel, VT, JIF and
JMUX, are some of the assignments that are shown on the Node Assignment
Drawing.

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Handling and Packing
Equipment with Electrostatic Discharge Sensitive (ESDS) devices or components
must be shipped in protective containers and necessary handling precautions
observed otherwise all warranties, expressed or implied, will be considered null
and void.
The following Electronic Industries Association (EIA) attention label appears on
all GE Power Mangement EAS schematics and should be attached on all
containers used for ESDS items to alert personnel that the contents requires
special handling.
HANDLE & ASSEMBLE
THIS UNIT CONTAINS STATIC SENSITIVE DEVICE
S
PER 562-48043-01
SENSITIVE
ELECTROSTATIC
OBSERVE PRECAUTIONS
FOR HANDLING
ATTENTION
DEVICES

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2. UNIT OVERVIEW
The 86447 LS DATA unit provides up to four 9.6 kb/s full-duplex asynchronous
data ports along with four end-to-end RS232 control signals over a single 64 kb
channel. Data transmission is transparent, irregardless of baud rate, start, stop,
or data bits.
The 86447 LS DATA unit can be configured with one, two or four active data
ports with maximum baud rates of 38.4 kb/s, 19.2 kb/s and 9.6 kb/s respectively.
All ports will accept sub-multiple rates of the programmed maximum baud rate.
Front panel LEDs provide monitoring of transmit and receive data activity for all
four available ports.
The unit occupies one shelf slot in an 86430 shelf and requires one channel
assignment of the 24 available channels in a JMUX VT.

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3. FRONT PANEL FEATURES
Led Indications
Alarm (red)
Denotes when the unit has lost either Shelf Framing, Data
Framing or operates at an out of temperature range. Shelf
Framing refers to the 2 kHz shelf SYNC clock and must first
be established before a Data Framing alarm can occur. After
shelf SYNC has been detected, the local and remote units
exchange messages to establish Data Framing. Shelf
Framing alarms usually occur if there are no JIF or JMUX
units present.
Xmt and Rcv (green)
These leds are green (steady) if the ports have been
configured but no data activity is present on the transmit or
receive terminals. These leds are green (blinking) if data
transitions are occurring on the transmit and receive
terminals.
Note: All led indications are controlled by the micro-
processor.
Push-button (ACK)
The main use is a led and micro-processor test; pressing the button causes all
the leds to light.
The second use is to put the micro-processor into a "Forth Loop" state. In this
condition, the micro ignores all settings until the JCI software is run. The JCI will
automatically clear the Channel Assignment setting (--) at which point the user
can configure the unit to the desired settings. If the unit is inserted with the ACK
button pressed and then removed and inserted normally (no JCI), all previous
settings will return.
Craft Interface (C.I.) Jack
This is a serial RS232 9600 b/s port for connection to a 386 or better PC. The
supplied JCI software enables the user to configure the unit and monitor the
units status.
LS-DATA UNIT
C.I.
86447-01
ACK
RCV
ALARM
XMT 4
3
1
2
Figure 1
Front Panel Layout

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4. UNIT DESCRIPTION
The 86447 LS DATA unit can be configured with up to four data ports however,
the following description is for circuit one only. Signal paths for circuits two,
three, and four will be identical as circuit one except for designations, locations,
etc.
All user connections are made to the 86447-90 Interconnect Paddle Board. Four
terminal blocks provide transmit data, receive data, signal ground, transmit
control and receive control interfaces for all four circuits. All pinout arrangements
are provided in the Installation Section of the manual.
A simplified Block Diagram has been included at the end of this section and can
be used for reference for the following signal paths analysis, however the user
should refer to schematics EAS-86447-M1 for complete circuit descriptions.
Transmit Signal Path
The XMT DATA IN bits are received on Paddle Board TB1(1) and sent to the
back connector J1(C1) of the main assembly board 087-86447-01. Plug P4(1)
routes the signal to the RS-232 Interface Assembly Board 087-86447-02 via
J4(1).
U4 on the Interface Assembly Board provides the electrical interface to the
Paddle Board and the necessary level translation and protection from the various
interfaces for the Programmable Logic Gate Array (U2). J2(15) passes the
signal back to the main assembly board on P2(15) to the capacitor chip array
CN3(12) which provides EMI filtering and suppression for U2.
U2(5) accepts the signal where it is processed and routed through various gate
arrays in the chip.
The signal is outputted on U2(78) to the output driver U8. The JVT Interface
J1(C14, A14) consists of a balanced 50 ohm RS-422 signal pair designed for
multi-point transmission.
The unit receives its clock source from the JVT Bus J1(C15, A15) through the
input driver U6. The JVT serial bus operates at 2.592 MHz.

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Receive Signal Path
The receive data bits are received by the input driver U7 from the JVT Bus
J1(C16, A16) and sent to U2(77).
U2 processes the signal and routes it through various gate arrays on the chip.
U2(4) outputs the signal to the capacitor chip array CN3(7), and passes the
signal from (11) to Plug P2(16). The signal is then sent to the Interface
Assembly Board on J2(16) to U4(11). U4 provides the electrical interface for the
Paddle Board. The signal is sent back to the main assembly board via J4(4);
P4(4); and terminated on the Paddle Board TB1(2) as RCV DATA OUT.
Control Signals
Each port is accompanied by RS-232 transmit and receive control signals with a
maximum bandwidth of 300 bits/s. The primary function of the control signals
are to provide an uncommitted virtual wire between two LS DATA units. The
state of the receive control signal is determined by the following configuration
options:
1) End - To - End: The state asserted on the transmit signal is reflected
at the receive end of the corresponding control
signal.
2) Loop back: The receive control signal reflects the state of the
local transmit control signal.
3) Set High: The receive control signal is set to a logic '1'; MARK
condition.
4) Set Low: The receive control signal is set to a logic '0'; SPACE
condition.
XMT and RCV CONTROL signals are terminated on the Paddle Board TB1(4,5)
where they are sent to U2 in exactly the same manner as the data information.