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About this Practice:
This practice has been reissued to:
• This is a new document.
Reissued Practices: Updated and
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banner in the right margin.
Issue date: May 1998
Copyright 1998 by Dantel, Inc. • Dantel is a registered trademark of Dantel, Inc. • ISO 9001 Registered
A18-05774-XX
VNET/O
I
NTERFACE
Table of Contents
Ordering Information ........................................................................... 2
General Description .............................................................................. 2
Installation ............................................................................................ 3
Operation ............................................................................................ 11
Technical Specifications ..................................................................... 13
Warranty ............................................................................................. 14
CAUTION
•
Install or remove modules from the shelf only when the power is off.
If you install a module in the shelf with the power on, the internal
circuitry may suffer damage and the product warranty will be void.
•
Remove and install circuit boards only in a static-safe environment
(use antistatic wrist straps, smocks, footwear, etc.).
•
Keep circuit boards in their antistatic bags when they are not in use.
•
Do not ship or store circuit boards near strong electrostatic, electromag-
netic, magnetic, or radioactive fields.
•
For more complete information on electrostatic discharge safety
precautions, refer to Bellcore
Printed in the U.S.A.
I
& O
NSTALLATION
05774-0598 <90-00122>
W
RDER
S
HELF
TM
Technical Reference # TR-NWT-000870.
M
PERATION
ANUAL
IRE
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Summary of Contents for Dantel A18-05774 Series
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Page 1: Table Of Contents
For more complete information on electrostatic discharge safety Issue date: May 1998 precautions, refer to Bellcore Technical Reference # TR-NWT-000870. Copyright 1998 by Dantel, Inc. • Dantel is a registered trademark of Dantel, Inc. • ISO 9001 Registered Printed in the U.S.A. -
Page 2: Ordering Information
“#” will release the system. Either party hanging up will release the system. The unit will operate from -21 to -56 volts with levels of +7 to -16 dBm on any port, using the Dantel 44118 VF bridge. In this application, port 4 (which is used for PBX acces) will be set for -6dBm on the RX input and 0dBm on the TX output. -
Page 3: Installation
INSTALLATION his section consists of: Equipment mounting Wiring Switch and strap settings ♦ 44020 DTMF Decoder ♦ 49018 Station Selector subassembly ♦ 44931 Relay Timer ♦ 49031 Relay Timer subassembly ♦ 44118 Bridge Alignment procedure QUIPMENT OUNTING Install the shelf in an equipment rack using the hardware provided. - Page 4 INSTALLATION IRING Wire the shelf as required. Refer to Fig. 2 for a functional schematic of the unit. . 2 - F , 05774 S UNCTIONAL CHEMATIC HELF 05774-0598 <90-00122>...
- Page 5 INSTALLATION WITCH AND TRAP ETTINGS Refer to Tables A through D and Figs. 3 through 7 to set the straps and switches on the modules. A - S , 44020 DTMF D ABLE WITCH AND TRAP ETTINGS ECODER OPTION SETTINGS Input Impedance Bridging BRDG...
- Page 6 INSTALLATION B - S , 49018 S ABLE WITCH AND TRAP ETTINGS TATION ELECTOR SUBASSEMBLY OPTION SETTINGS Reset 3 second reset Number of Digits 3-digit Codes Digit 3 Address Code 1 First Digit S1 = 1 (or as required) Second Digit S2 = 2 (or as required) Third Digit S3 = 3 (or as required)
- Page 7 INSTALLATION C - S , 44931 R 49031 S ABLE WITCH AND TRAP ETTINGS ELAY IMER AND UBASSEMBLY TIMER A TIMER B TIMER C RO/NO RO/NO (SUBASSEMBLY RTI/RTO RTI/RTO RO/NO TC/IC TC/IC RTI/RTO NI/RI NI/RI TC/IC IG/IB IG/IB NI/RI C1, C2, C3 C1, C2, C3 IG/IB GO/BO (S1)
- Page 8 INSTALLATION . 6 - S , 49031 R WITCH AND TRAP OCATIONS ELAY IMER SUBASSEMBLY SUBASSEMBLY MOUNTING HOLE FRONT PANEL 49031-00 TIMER C RELAY C RTO RTI NO RO TC IC DC HI DC LOW OPTICAL COUPLER K1 2 RELAY RELAY TIMER REGISTER...
- Page 9 INSTALLATION . 7 - S , 44118 B TRAP OCATIONS RIDGE B2X D2H B1X D1H HI LO HI LO HI LO HI LO LO HI HI LO LIGNMENT All straps and levels are factory-set. If necessary, refer to Fig. 8 and the section below to align the 44118 Bridge.
- Page 10 INSTALLATION . 8 - F , 44118 RONT ANEL Connect the 600-ohm terminated dB meter to the COMBINED DIST OUTPUT jack (J9) on the 44118 front panel. The meter will 44118-00 remain here for steps 4 through 7. DISTRIBUTION BRIDGE Connect the signal generator to the LINE RCV PORT 1 jack (J1) on LINE RCV the 44118 front panel.
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Page 11: Operation
OPERATION efer to Fig 2. In the idle condition, relays KA, KB and KC are released and timers TA, TB and TC are not active. The relays and the timers are located in slot J2. Relay KB, being released, cut and terminate the input to the VF bridge (J3) and it will also cut and terminate the PBX output pair. - Page 12 OPERATION that it is a slow to operate relay. (50 msec) After the slow to operate period, TB will output a ground which will turn on relay KB. This will remove the VF shunt and it will also turn on timer TA which will place either a ground or battery on the E lead of the PBX.
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Page 13: Technical Specifications
TECHNICAL SPECIFICATIONS DESCRIPTION VALUE Input Voltage Range -21 to -56 VDC Input Power Requirement @ -48VDC * Idle 110 mA Full Load 271 mA Heat Dissipation @ -48VDC Idle 24.73 Btu/Hr Full Load 44.72 Btu/Hr Physical Dimensions 19" 19" x 8.25" x 1.72" 23"... -
Page 14: Warranty
To ensure expedient processing of your order, provide a purchase order number and shipping and billing information when requesting an RMA number. Also, when the units are returned to Dantel, include a descrip- tion of the failure symptoms for each unit returned. Send defective equipment to: Dantel, Inc.