Loop Telecom Loop-V4300 User manual

Loop-V4300
Mini DACS E1/T1 Converter
USER'S MANUAL
LOOP TELECOMMUNICATION INTERNATIONAL, INC.
8F, NO. 8, HSIN ANN RD.
SCIENCE-BASED INDUSTRIAL PARK
HSINCHU, TAIWAN
Tel: [phone]
Fax: [phone]

©2006 Loop Telecommunication International, Inc. All rights reserved.
Loop-V is a trade mark of Loop Telecommunication International, Inc.
P/N: 51.LV4300.000
11/2006 Version 38

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TABLES OF CONTENTS
1. PRODUCT DESCRIPTION ....................................................................................................................... 1
1.1 Description .......................................................................................................................................... 1
1.2 Physical Description............................................................................................................................ 1
1.3 Applications ......................................................................................................................................... 2
1.4 Specification........................................................................................................................................ 4
2. INSTALLATION .......................................................................................................................................... 6
2.1 Site Selection ...................................................................................................................................... 6
2.2 Mechanical and Electrical Installation ................................................................................................. 6
2.2.1 Electrical Installation .................................................................................................................... 8
2.2.2 Changing the line connector choice for the E1 ports................................................................. 10
2.3 Configuration Setting......................................................................................................................... 17
2.3.1 Hardware Configuration Setting................................................................................................. 17
2.3.2 Software Configuration Setting .................................................................................................. 17
3. OPERATION ............................................................................................................................................ 20
3.1 Quick Start for E1/T1 Converter........................................................................................................ 20
3.1.1 Power On ................................................................................................................................... 20
3.1.2 Return to Default Setting............................................................................................................ 20
3.1.3 Using Front Panel ...................................................................................................................... 20
3.1.4 Using Terminal........................................................................................................................... 20
3.2 System Operation ............................................................................................................................. 21
3.3 Configurations ................................................................................................................................... 21
3.3.1 DS1 Network Line Parameters .................................................................................................. 21
3.3.2 Master Clock .............................................................................................................................. 24
3.3.3 TSI Map...................................................................................................................................... 24
3.3.4 1 for 1 Protection........................................................................................................................ 25
3.3.5 Save ........................................................................................................................................... 25
3.3.6 Restore....................................................................................................................................... 25
3.3.7 Console Parameters .................................................................................................................. 25
3.3.8 Date & Time ............................................................................................................................... 25
3.4 DTE Configuration............................................................................................................................. 25
3.4.1 Rate............................................................................................................................................ 25
3.4.2 Clock Polarity ............................................................................................................................. 25
3.4.3 Data Polarity .............................................................................................................................. 26
3.4.4 RTS ............................................................................................................................................ 26
3.4.5 TTM............................................................................................................................................ 26
3.5 Diagnostics........................................................................................................................................ 26
3.6 Alarm and Reports ............................................................................................................................ 26
3.6.1 Alarms ........................................................................................................................................ 26

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3.6.2 Requesting Report ..................................................................................................................... 27
3.7 LED Operation .................................................................................................................................. 28
3.8 Error Messages................................................................................................................................. 28
3.9 Embedded SNMP Agent ................................................................................................................... 29
3.10 Inband Management ......................................................................................................................... 29
4. MAINTENANCE ....................................................................................................................................... 31
4.1 Self-Test ............................................................................................................................................ 31
4.2 Diagnostics........................................................................................................................................ 31
4.3 Near End Loopback - DTE................................................................................................................ 31
4.4 Near End Loopbacks - T1/ E1........................................................................................................... 31
4.4.1 Local Loopback.......................................................................................................................... 32
4.4.2 Line Loopback............................................................................................................................ 32
4.4.3 Payload Loopback ..................................................................................................................... 32
4.5 Verifying Loop-V4300 Operations..................................................................................................... 33
4.5.1 Quick Test.................................................................................................................................. 33
4.5.2 Substitution ................................................................................................................................ 33
4.5.3 Using Loopback Plugs ............................................................................................................... 33
4.5.4 Using Bert Test Set.................................................................................................................... 34
5. FRONT PANEL OPERATION .................................................................................................................. 35
5.1 Configuration Menu.......................................................................................................................... 38
5.1.1 PORT-A Configuration - Line Type T1....................................................................................... 38
5.1.2 Other Ports and Line Type E1 ................................................................................................... 41
5.1.3 Port Type V.35 ........................................................................................................................... 42
5.1.4 Master Clock .............................................................................................................................. 43
5.1.5 TSI Map...................................................................................................................................... 44
5.1.6 Save ........................................................................................................................................... 44
5.1.7 Restore....................................................................................................................................... 45
5.1.8 Console ...................................................................................................................................... 45
5.1.9 Date............................................................................................................................................ 46
5.1.10 Time ........................................................................................................................................... 46
5.2 Diagnostics Menu............................................................................................................................. 47
5.2.1 Near Loopback........................................................................................................................... 47
5.2.2 Testing Pattern........................................................................................................................... 47
5.3 Alarm ................................................................................................................................................. 48
5.3.1 Select Port.................................................................................................................................. 48
5.4 Performance...................................................................................................................................... 49
5.4.1 Select Port.................................................................................................................................. 49
5.5 Miscellaneous.................................................................................................................................... 50
6. TERMINAL OPERATIONS....................................................................................................................... 51
6.1 One Hour Performance Report ......................................................................................................... 52
6.2 Twenty Four Hour Performance Report............................................................................................ 53
6.3 Line Availability ................................................................................................................................. 53

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6.4 System Setup Display ....................................................................................................................... 54
6.5 System Description ........................................................................................................................... 54
6.6 Alarm History..................................................................................................................................... 55
6.7 System Status ................................................................................................................................... 56
6.8 Alarm Queue ..................................................................................................................................... 56
6.9 Loopback Test.................................................................................................................................. 57
6.10 Alarm Setup....................................................................................................................................... 58
6.11 Password Setup ................................................................................................................................ 58
6.12 System Setup.................................................................................................................................... 59
6.12.1 Port............................................................................................................................................. 61
6.12.2 MAP ........................................................................................................................................... 64
6.12.3 Inband Management Setup........................................................................................................ 66
6.13 Retrieve Last Stored Configuration................................................................................................... 68
6.14 Store Current Configuration .............................................................................................................. 68
6.15 Download Firmware .......................................................................................................................... 69
6.16 Load Default Configuration ............................................................................................................... 69
6.17 Clear Alarm Queue ........................................................................................................................... 69
6.18 Clear Performance Data ................................................................................................................... 69
6.19 System Reset .................................................................................................................................... 69
6.20 Clear Alarm LED ............................................................................................................................... 69
6.21 Unprotect Port A................................................................................................................................ 70
7. Appendix A – Clear Channel T1 to E1 ..................................................................................................... 71
8. Appendix B – Retrieving a Map Configuration from Memory................................................................... 74
9 APPENDIX C: V4300 E1/T1 Protection ................................................................................................... 75

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LIST OF FIGURES
Figure 1 - 1 Pictorial of Mini DACS Series Products ....................................................................................... 1
Figure 2- 1 Front Panel...................................................................................................................................... 6
Figure 2- 2 Rear Panels..................................................................................................................................... 7
Figure 2- 3 Installation Diagram (Single) ........................................................................................................... 7
Figure 2- 4 Installation Diagram (Double).......................................................................................................... 7
Figure 2- 5 Main Board Jumper Setting - BNC (75 ohm) E1........................................................................... 11
Figure 2- 6 Main Board Jumper Setting – RJ (120 ohm) E1 ........................................................................... 12
Figure 2- 7 Main Board Jumper Setting - RJ (100 ohm) T1 ............................................................................ 13
Figure 2- 8 Daughter Board Jumper Setting - BNC (75 ohm) E1.................................................................... 14
Figure 2- 9 Daughter Board Jumper Setting – RJ (120 ohm) E1 .................................................................... 15
Figure 2- 10 Daughter Board Jumper Setting - RJ (100 ohm) T1 ................................................................... 16
Figure 3 - 1 SNMP Connection....................................................................................................................... 29
Figure 4 - 1 Loop-V4300 Loopback Block Diagram ...................................................................................... 32
Figure 5 - 1 Front Panel................................................................................................................................... 35
Figure 5 - 2 Front Panel LCD Menu Tree - Part 1 .......................................................................................... 36
Figure 5 - 3 Front Panel LCD Menu Tree - Part 2 .......................................................................................... 36
Figure 5 - 4 Front Panel LCD Menu Tree - Part 3 .......................................................................................... 37
Figure 5 - 5 Front Panel LCD Menu Tree - Part 4 .......................................................................................... 37
Figure 9- 1 V4300 E1/T1 Protection ............................................................................................................... 75
LIST OF TABLES
Table 2- 1 Power Connector............................................................................................................................. 8
Table 2- 2 Console Port..................................................................................................................................... 8
Table 2- 3 Ethernet Port ................................................................................................................................... 8
Table 2- 4 RJ 45 Line Connector...................................................................................................................... 9
Table 2- 5 V.35/DB25 DTE Port Pin Definition.................................................................................................. 9
Table 2- 6 Jumper Setting for Main Board....................................................................................................... 10
Table 2- 7 Jumper Setting for Daughter Board .............................................................................................. 14
Table 2- 8 Default Software Configuration ..................................................................................................... 18
Table 3- 1 E1 Line Default Setting................................................................................................................... 23
Table 3- 2 T1 Line Default Setting.................................................................................................................. 24
Table 3- 3 Alarm Type Table .......................................................................................................................... 27
Table 3- 4 Performance Report Options.......................................................................................................... 27
Table 3- 5 Front-Panel LED Table................................................................................................................... 28
Table 3- 6 Error Message Table..................................................................................................................... 28
Table 9- 1 V4300 E1/T1 Protection Factors ................................................................................................... 75

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D Bitte führen Sie das Gerät am Ende seinerLewbensdauer den zue Verfügung
stehended Rückgabeund Sammelsystemen zu.
GB At the end of the product's useful life, please dispose of it at appropriate
collection points provided in your country
F Une fois le produit en fin devie, veuillez le déposer dans un point de recyclage
approprié.
E Para preservar el medio ambiente, al final dela vida útil de su producto,
depositelo en los laguares destinado aello de acuerdo con la legislación vigente.
P No final de vida útil do producto, por favor coloque no ponto de recolha
apropriado.
I Onde tutelare l'ambiente, non buttate l'apparecchio trai i normali rifiuti al termine
della sua vita utile, ma portatelo presso i punti do taccolta specifici per questi
rifiuti previsti dalla normativa vigente.
NL Wij raden u aan het apparant aan het einde van zijn nuttige levensduur, niet bij
hey gewone huisafval te deponeren, maar op de dearvoor bestemde adressen.
DK Når produktet er udtjent, bor det børtskaffes via de sæ rlige indsamlingssteder i
landet.
N Ved slutten av produktets levetid bør det avhendes på en kommunal miljøstasjon
eller leveres til en elektroforhandler.
S Lämna vänligen in produkten på lämplig återvinningsstation när den är
förbrukad.
FIN Hävitä tuote käytöiän päättyessä viemällä se asianmukaiseen keräyspisteeseen.
PL Gdy produkt nie nadaje sie juz do dalszego uzytku, nalezy zostawic go w jednym
ze specjalnych punktów zajmujacych sie zbiórka zuzytych producktów w
wybranych miejscach na terenie kraju.
CZ Po skončení jeho životnosti odložte prosím výrobek na přislušném sbĕrném
místé zřízeném dle předpisůve vaší zemi.
SK Po skončení jeho životnosti odovzdajte prosím zariadenie na príslušnom
zbernom mieste podía platných miestnych predpisov a noriem.
SLO Ko se izdelku izteče življenska doba, ga odnesite na ustrezno zbirno mesto
oziroma ga odvrzite v skladu z veljavnimi predpisi.
GR Στο Тέλος тης λειτουργικής Ζωής του προϊόντος παρακαλώ
Πετξτε το στα ειōικά σημεία που Παρέχονται οτη χωρα σας.
PRC 當產品使用壽命結束,請在你的國家所提供的適當地點做好回收處理

- vi -
EMC/EMI:
Compliance with : EN 55022 Class A, CISP22 Class A
Compliance with : EN 50082, 50081
Compliance with : FCC 15B, Class A
Safety Requirements
Compliance with : EN 60950, UL1950, CAN/CSA 22.2 NO. 950
Telecom
Compliance with : FCC68, CS-03, CE168X

- vii -
_________________________
FCC Requirements, Part 68
_________________________
This equipment complies with Part 68 of the FCC rules. On the top cover of this
equipment is a label that contains, among other information, the FCC registration
number and ringer equivalence number (REN) for this equipment. If requested, this
information must be provided to the telephone company.
Loop-V Mini DACS E1/T1 Converter registration number and REN is as follows:
FCC 68 Registration Number: IZITAI-25726-DE-N
REN: 0.0B
FACILITY INTERFACE CODE FOR DIGITAL SERVICES
CODE DESCRIPTION
04DU9-BN 1.544 Mbps Superframe Format (SF) without line power.
04DU9-DN 1.544 Mbps SF and B8ZS without line power.
04DU9-1KN 1.544 Mbps ANSI ESF without line power.
04DU9-1SN 1.544 Mbps ANSI ESF and B8ZS without line power.
SERVICE ORDER CODES FOR DIGITAL SERVICES
CODE DESCRIPTION
6.0N Does not provide billing and encoded analog protection. Uses either
an integrated or external CSU. Affidavit to telco is required.
Loop-V Mini DACS E1/T1 Converter connect to the network using a RJ48C
connector.
If this equipment cause harm to telephone network, the telephone company will
notify you in advance that temporary discontinuance of service may be required. If
advance notice isn't practical, the telephone company will notify the customer as
soon as possible. Also, you will be advised of your right to file a compliant with the
FCC if you believe it is necessary.
The telephone company may make changes in it's facilities, equipment, operations,
or procedures that could affect the operation of the equipment. If this happens, the
telephone company will provide advance notice in order for you to make the
necessary modifications in order to maintain uninterrupted service.

- viii -
Normally, this equipment will be used in conjunction with FCC registered equipment
that limits the Encoded Analog Content and provides the required Billing Protection.
If the connected equipment is not of this type, an affidavit must be supplied to the
telephone company where the network connection is to be made. The affidavit is to
be notarized, and is to be filed at least ten days before the initial connection.
If trouble is experienced with this equipment, please contact Loop
Telecommunication America Service Facility for repair and warranty information. If
the trouble is causing harm to the telephone network, the telephone company may
request you remove the equipment from the network until the problem is resolved.
All repairs should be handled by authorized Loop Telecommunication Service
Personnel. Service can be facilitated through our office at:
Loop Telecommunication International
8 Carrick Road
Palm Beach Gardens, FL 33418
U.S.A.
(Tel ) 561-627-7947
(Fax) 561-627-6615
(e-mail) <JIMBER/[email protected]>
This equipment cannot be used on telephone company-provided coin service.
Connection to Party Line Service is subject to state tariffs.
_______________________
FCC Requirements, Part 15
________________________
This equipment has been tested and found to comply with the limits for a Class A
digital device pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at
the user's own expense.

- ix -
_________________________
Safety Requirements
_________________________
IMPORTANT SAFETY INSTRUCTIONS
When using your equipment, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to persons, including the following:
1. Do not use this product near water, for example, near a bath tub, wash bowl,
kitchen sink or laundry tub, in a wet basement or near a swimming pool.
2. Install an AC surge arrestor in the AC outlet to which the Loop Telecom’s
equipment is connected.
3. This equipment must be connected to an earth socket-outlet.
Note: For a DC power unit, please refer to the 1st instruction ONLY.
Save these instructions
IMPORTANTES MESURES DE SÉCURITÉ
Certaines mesures de sécurité doivent être prises pendant l’utillsation de matérial
afin de réduire les risques d’incendie, de choc électrique et de biessures.
En voicl quelquesunes:
1. Ne pas utillser l’apparell près de l’eau, p.ex., près d’une baignoire, d’un lavabo,
d’un évier de cuisine, d’un bac à laver, dans un sous-sol humide ou près d’une
piscine.
2. Installez une protection contre les pointes de tension alternative dans la prise de
courant reliant l'equipement de Loop Telecom.
3. Cet equipement doit être branche a une prise reliant la terre.
Note: Pour une unite a courant continu, referez vous SVP a la première instruction.
Gardez ce mode d'emploi a porter de main

- x -
_______________________________________
National Electrical Code Requirements
_______________________________________
The Loop-V Mini DACS E1/T1 Converter is ITS Testing Laboratories certified to be in
compliance with the Underwriters Laboratories (UL) 1950 Telephone Equipment
Standard. The ITS control number is 75425.
____________________________
DOC CS-03 Requirements
____________________________
NOTICE: The Canadian Industry Canada label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network
protective, operational and safety requirements. The Department does not
guarantee the equipment will operate to the user's satisfaction.
Before installing this equipment, user should ensure that it is permissible to be
connected to the facilities of the local telecommunications company. The equipment
must also be installed using an acceptable method of connection. In some cases,
the company's inside wiring associated with a single line individual service may be
extended by means of a certified connector assembly (telephone extension cord).
The customer should be aware that compliance with the above conditions may not
prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian
maintenance facility designated by the supplier. Any repairs or alternations made by
the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the
equipment.
User should ensure for their own protection that the electrical ground connections
of the power utility, telephone lines and internal metallic water pipe system, if
present, are connected together. This precaution may be particularly important in
rural areas.
Caution: User should not attempt to make such connections themselves, but
should contact the appropriate electric inspection authority, or electrician, as
appropriate.
The Load Number (LN) assigned to each terminal device denotes the percentage of
the total load to be connected to a telephone loop which is used by the device, to
prevent overloading. The termination on a loop may consist of any combination of
devices subject only to the requirement that the total of the Load Number of all the
devices does not exceed 100.

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________________________
CSA 22.2 Requirements
_________________________
The Loop-V Mini DACS E1/T1 Converter is ITS Testing Laboratories certified to be in
compliance with Canadian Standards Association (CSA) Std 22.2 No. 225
Telephone Equipment Standard. The ITS control number is 75425.
_________________________
Compliance
_________________________
Loop-V Mini DACS is designed to meet the following standards:
•AT&T TR 54016 Requirements for interfacing digital terminal equipment to
services employing the extended superframe format.
•AT&T TR 54019 International ACCUNET®digital services description and
network interface specifications.
•AT&T TR 54019A Addendum to TR54019.
•AT&T TR 62411 ACCUNET®T1.5 service description and interface specification.
•ANSI T1.403-1989 Carrier to customer installation - DS1 metallic interface.

Chapter 1 Product Description
1
1. PRODUCT DESCRIPTION
1.1 Description
Loop-V4300 Mini DACS E1/T1 converter provides both DS0 and n*64 Kbps cross-connect between any T1
and E1 ports and E1 to T1 format conversion functions. E1 to T1 conversion include line format, A law toμ
law conversion, and signaling bits association. Loop-V4300 supports DTE port operating from 56 Kbps to
1984 Kbps, This unit is suitable for applications involving 2 to 4 ports. Loop-V4300 also supports inband
Management, where management data is carried the same way as user data, traversing national networks.
1.2 Physical Description
The Mini DACS is available as a stand-alone desk-top unit which can be rack-mounted. The Mini DACS is
available in 20-72 Vdc or 100-240 Vac powering.
Figure 1 - 1 Pictorial of Mini DACS Series Products
ESC
ENTER
CONSOLE
POWER A B C D ALARM
PORT

Chapter 1 Product Description
2
1.3 Applications
The mini DACS series application example is illustrated in the following figures.
A1: E1/T1 converter (24 TS) B1: E1/T1 converter (31 TS) and DACS C1: Dual E1/T1 converter and DACS
C: 4 linksB: 3 linksA: 2 links
E1
TSI
E1
E1 E1
TSI
T1
E1
TSI
T1
E1
TSI
T1
E1
T1 T1
E1
TSI
E1
E1
A2: E1 LTU with TSI B2: E1/T1 converter and DACS C2: E1/T1 converter and DACS
TSI
T1
T1
TSI
T1
E1 T1
A3: T1 CSU with TSI B3: E1 DACS C3: E1/T1 converter and DACS
TSI
E1
E1
E1
CSU
E1
E1
A4: ICSU B4: T1 DACS C4: E1 DACS
TSI
T1
T1
T1
T1
TSI
T1
T1 T1
C5: T1 DACS
T1
TSI
E1
T1
E1
E1
TSI
E1 T1
E1

Chapter 1 Product Description
3
C: 4 linksB: 3 links
TSI
DTE
E1/ T1
E1/ T1
TSI
DTE
E1/ T1
E1/ T1 DTE
TSI
DTE
E1/ T1
E1/ T1
E1/ T1
1 for 1 Protection
TSI
E1/ DTE
E1
E1
TSI
E1
E1
TSI
T1/ E1/ DTE
T1
T1
TSI
T1
T1
E1/ DTE
E1/ DTE
T1/ E1/ DTE
T1/ E1/ DTE

Chapter 1 Product Description
4
1.4 Specification
Network Line Interface (E1)
Line Rate 2.048 Mbps ±50 ppm
Line Code AMI / HDB3
Input Signal ITU G.703
Framing ITU G.704
Connector BNC/RJ48C
Output Signal ITU G.703
Electrical 75ΩCoax/120Ωtwisted pair
Network Line Interface (T1)
Line Rate 1.544 Mbps ±32 ppm
Line Code AMI / B8ZS
Input Signal DS-1 from 0 dB to -26 dB w/ALBO
Surge Protection FCC Part 68 Sub-Part D
Framing D4/ ESF/ ESF&T1.403/ NONE (Clear Channel)
Connector RJ48C
Output Signal DSX-1, DS-1
Pulse Template Per AT&T TR 62411
DTE Interface (V.35)
Data Rate n x (56 or 64) Kbps (n = 1 - 31)
Connector DB25S for V.35
Performance Monitor
Performance Store E1: Last 24 hours performance in 15 minutes interval register and last 7 days in 24
hours summary
T1: The last 24 hours performance in 15-minute intervals
Monitor Registers E1: Line, user
T1: Line, user
Performance Reports E1: Reports include Date&Time, Error Second, Unavailable Second, Bursty Error
Second, Severe Error Second, Degraded Minutes, and Controlled Slip Second.
Also available in Statistics (%)
T1: Reports include Date&Time, Error Second, Unavailable Second, Bursty Error
Second, Severe Error Second, Controlled Slip Second, and Loss of Frame Count
Alarm History Reports include Date&Time, Alarm Type (i.e. Master Clock Loss, Yellow Alarm, AIS,
LOS, BPV, ES, CSS), and Location (i.e. line, PORT A, B, C, D )
Alarm Queue Contains 40 alarm records which record the latest alarm type, location, and
Date&Time
Alarm Relay
Alarm Relay Normally closed
Fuse alarm and performance alarm
Protection
1 for 1 Port B can be configured to protect Port A

Chapter 1 Product Description
5
Network Management
Console Port
Connector DB9 at Front Panel
Electrical RS232 interface
Protocol Menu driven VT-100 terminal
Ethernet Port
Connector RJ45 in rear
Protocol Telnet (VT100) and Embedded SNMP
Voice Channel Conversion
A-law to μ-law G.711
Signaling bits ABCD are converted using user configurable conversion table
Inband Management
Any 64 Kbps DS0 can be assigned for management
Management Protocols: HDLC
Diagnostics Test
Loopback Line Loopback, Payload Loopback, Local Loopback, and DTE Loopback
Front Panel
Keypad 4 keys: left arrow, right arrow, ESC, and ENTER
LCD 2-line by 16-character
LED 6: Power, Port A, Port B, Port C, Port D, Alarm
Physical/Electrical
Dimensions 22.5 x 4.5 x 20 cm, 8 7/16" x 1 3/4" x 7 7/8" (WxHxD)
Temperature range 0°C -50°C
Power 20-72 Vdc / 100-240 Vac, 50/60 Hz, 10 Watts
Fuse 250V, 800mA
Humidity 0%-95% RH (non-condensing)
Mounting Desk-top stackable, 19/23 inch rack mountable, two units side-by-side

Chapter 2 Installation
6
2. INSTALLATION
CAUTION:
•Never install telephone wiring during a lightning storm.
•Never install telephone jacks in wet locations unless the jack is specifically designed for wet
locations.
•Never touch un-insulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
•Use caution when installing or modifying telephone lines.
2.1 Site Selection
The following are guidelines for site selection. These guidelines must be followed to ensure a proper
installation site.
• The installation site should have an AC power receptacle or 20-72 Vdc supply as appropriate.
• The installation site should provide space for adequate ventilation and cable routing. Reserve at least 5
inches at the rear of the unit for cables and air flow.
• The site should provide a stable environment. The operating area should be clean and free from
extremes of temperature, humidity, shock, and vibration.
• Relatively humidity should stay between 0 and 95% non-condensing. Do not operate the unit at altitudes
greater than 3500m (10,000 feet).
2.2 Mechanical and Electrical Installation
Loop-V4300, as a desk top unit, is stackable. The front panel is shown in Figure 2-1, and the rear panel is
shown in Figure 2-2. For rack mounting, the Mini DACS can be mounted 1 or 2 units per 1U rack space.
Figure 2- 1 Front Panel
ESC
ENTER
CONSOLE
POWER A B C D ALARM
PORT

Chapter 2 Installation
7
Figure 2- 2 Rear Panels
Figure 2- 3 Installation Diagram (Single)
Figure 2- 4 Installation Diagram (Double)
PORT C
PORT D - V.35
PORT APORT B
TX-OUT RX-IN
TX-OUT
RX-IN
ALM RELAY
EXT.CLK -V +V
PORT C
PORT D
PORT APORT B
TX-OUT
RX-IN
TX-OUT
RX-IN
ALM RELAY
EXT.CLK -V +V