ACCURATE ELECTRONICS 1040120000 Podręcznik - Strona 3
Przeglądaj online lub pobierz pdf Podręcznik dla Sprzęt komputerowy ACCURATE ELECTRONICS 1040120000. ACCURATE ELECTRONICS 1040120000 6 stron. 4-wire 6-way active conference bridge
Drukuj stronęACCURATE ELECTRONICS INC
WWW.ACCURATE.ORG
PO BOX 1654 97075-1654 8687 SW HALL BLVD 97008
6.06 At the transmit side, signals from the RX Ports 2, 3, 4, 5, and 6 enter
operational amplifier U-3 and are transformer-coupled to the TX Port 1 tip
and ring leads via transformer T2. The front-panel-mounted TX LEVEL
control provides a range of -6dB to +12 dB to compensate for line losses. A
-16 dB XMT PAD can be jumpered in the circuit for carrier applications.
6.07 The circuit operation for RCV Ports 2, 3, 4, 5 and 6 is identical to RX
Port 1. In all cases, the signals present on a given RCV LINE are coupled to
all XMT LINE ports, except the XMT LINE port associated with the RCV
LINE port that is originating the signals.
Calibration Circuits
6.08 The outputs of the six RX Port operational amplifiers appear at the input
of the RX TEST AMP. This amplifier provides an impedance match for an
AC voltmeter, which is plugged into the RCV CAL Bantam jack during the
receive alignment.
6.09 The output of the TX TEST AMP is coupled to the inputs of the six TX
LINE operational amplifiers. The TX TEST AMP, in conjunction with the
TX CAL Bantam jack, provides the interface for an oscillator, which is used
for the transmit level alignment on each transmit line.
5.10 An internally regulated power supply allows operation on external -22
to -56VDC input, and ground.
7. MECHANICAL OUTLINE
7.01 See FIGURE 2.
8. SPECIFICATIONS
8.01 Electrical
Power Requirements:
Maximum Input current (at -48 V Battery):
Reverse Battery Protection
Transmission:
Insertion Loss:
maximum output level (overload point) +10dBm
Frequency Response:
Harmonic Distortion:
Port Impedance:
Idle Noise:
Envelope Delay Distortion:
Longitudinal Balance:
Crosstalk (receive path to transmit path):
8.02 Environmental
Operating Temperature:
Humidity:
Altitude:
8.03 Physical
Calibration /Test:
Potentiometer Adjust:
Dimensions:
Weight:
Mounting:
Silkscreen (front panel):
Silkscreen (PCB):
This document contains proprietary information and is supplied for identification, maintenance, engineering evaluation or inspection purposes only and shall not be duplicated or disclosed without written
permission of: ACCURATE ELECTRONICS INC By accepting this document the recipient agrees to make every effort to prevent unauthorized use of this information.
- 48VDC (-22 to -56VDC)
Ground
factory adjusted to 0 dB dB
Can be adjusted from -10 dB to +23 dB
jumper selectable
+/- 5 dB, 300 Hz to 3.2 kHz
(referenced to 1 kHz)
< 5 % at + 10 dBm
all ports 600 ohms, +/- 10%, balanced
< 18 dBrn C at +22 dB bridge gain
< 100 microseconds, 300 Hz to 4 kHz
> 60 dB, 200 Hz to 3.5 kHz
> 60 dB, 300 Hz to 1 kHz
> 50 dB, to 3.3 kHz
0 - 49° C
up to 95% R.H., no condensation
up to 15,000 ft.(4,572 m)
Bantam jacks
slotted screw
5.600 "H x 1.500 "W x 6.000 "D
14.224cmH x 3.810cmW x 15.240cmD
15 oz. / 0.425 kg
One module mounting position
in a type 10 or 400 Relay Rack Shelf
white over black anodize
white over green
Practice Section 10401200 Rev A
BEAVERTON OR USA 503.641.0118
9. TESTING AND TROUBLESHOOTING
9.01 The Testing Guide Checklist (see Figure 5) may be used to assist in the
installation, testing or troubleshooting of the product. The checklist is
intended as an aid in the localization of trouble to a specific product. If a
product is suspected of being defective, a new one should be substituted and
the test conducted again. If the substitute product operates correctly, the
original product should be considered defective and returned to Accurate for
repair or replacement as directed below. We strongly recommend that no
internal (component-level) testing or repairs be attempted on the product.
Unauthorized testing or repairs may void the product's warranty. Also, if the
product is part of a registered system, unauthorized repairs will result in
noncompliance with Part 68 of the FCC Rules and Regulations.
TECHNICAL ASSISTANCE
9.02 Contact Accurate Electronics, Inc. 503.641.0118, FAX: 503.646.3903;
Mail: PO Box 1654, Beaverton OR 97075-1654.
RETURN PROCEDURE (FOR REPAIR)
9.03 To return equipment for repair, first contact Accurate Electronics, Inc.
Enclose an explanation of the malfunction, your company's name and
address, the name of a person to contact for further information, and the
purchase order number for the transaction. Accurate Electronics will inspect,
repair, and retest the equipment so that it meets its original performance
specifications and then ship the equipment back to you. If the equipment is
in warranty, no invoice will be issued.
10. MAINTENANCE
10.01 No preventive maintenance is required. General care is recommended.
11. WARRANTY
60 mA
11.01 All Accurate Electronics Inc. products carry a full FIVE (5) YEAR
warranty on materials and workmanship. See WARRANTY in front of
catalog.
Note: Warranty service does not include removal of permanent customer markings on
the front panels of Accurate Electronics' products, although an attempt will be made to
do so. If a product must be marked defective, we recommend that it be done on a piece
of tape or on a removable stick-on label.
11.02 If a situation arises that is not covered in the checklist, contact
Accurate Customer Service as follows (telephone number are given below):
Contact Accurate Electronic Customer Service
11.03 If a product is diagnosed a defective, follow the replacement procedure
in paragraph 11.04 when a critical service outage exists (e.g., when a system
of a critical circuit is down and no spares are available). If the situation is not
critical, follow the repair and return procedure in paragraph 11.05.
Replacement
11.04 To obtain a replacement product, notify Accurate Electronics. Be sure
to provide all relevant information, including the 10401200 part number that
indicates the issue of the product in question. Upon notification, we shall
ship a replacement product to you. If the product in question is in warranty,
the replacement will be shipped at no charge. Pack the defective product in
the replacement product's carton, sign the packing slip included with the
replacement, and enclose it with the defective product (this is your return
authorization). Affix the preaddressed label provided with the replacement
product to the carton being returned, and ship the product prepaid to Accurate
Electronics.
Repair and Return
11.05
Return the defective product, shipment prepaid, to Accurate
Electronics Inc. :
ACCURATE ELECTRONICS INC.
ATTN: REPAIR AND RETURN
8687 SW HALL BLVD. #100
BEAVERTON, OREGON 97008 USA
January 2014
FAX 503.646.3903
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