Section 311-580-20B
030-101527 Rev. B
22
0407IBRB
shelf connector. If trouble persists, replace the suspect unit and
repeat procedures outlined. These procedures are not designed
to effect repairs or modifications. Any tests beyond those out-
lined herein, or repairs made beyond replacing a faulty unit, are
not recommended and may void the warranty.
11.
CUSTOMER & TECHNICAL SERVICES
11.1
Customer Service & Technical Assistance
If technical or customer assistance is required, contact Westell
by calling or using one of the following options:
Voice: (630) 898-2500
Voice: (800) 323-6883
email:
Visit the Westell World Wide Web site at http://
www.Westell.com
for additional information about Westell.
11.2
Part Numbers
This equipment is identified by a product number (B90-
311580), which consists of three parts: the issue letter of the
equipment (B), the assembly type (90), and the specific model
number (311580). When a change is made to the product which
changes the form, fit, or function of the product, the issue letter
is incremented by one. Please indicate the issue level as well as
the model number when making equipment inquiries.
12.
WARRANTY & REPAIRS
12.1
Warranty
Westell warrants this product to be defect-free at shipment time,
and warrants this product to be fully functional for the time peri-
od specified by the terms and conditions governing the product
sale. Equipment repair or modification attempts by un-autho-
rized Westell representatives will void the warranty.
12.2
Repair and Return
Westell will repair or replace any defective Westell equipment
without cost during the warranty period if the unit is defective
for any reason other than abuse, improper use, or improper
installation. Before returning the defective equipment, first re-
quest a Return Material Authorization (RMA) number from
Westell. Once an RMA number is obtained, return the defective
unit, freight prepaid, along with a brief problem description, to:
Westell, Inc.
ATTN: R.G.M. Department
750 N. Commons Drive
Aurora, IL 60504-7940
Replacements will be shipped in the fastest manner consistent
with the urgency of the situation. Westell will continue to repair
or replace faulty equipment beyond the warranty period for a
nominal charge. Contact Westell for details.
13.
SPECIFICATIONS
13.1
Ordering Specifications
To order units, call the telephone number in Paragraph
and
please specify a specific model number shown in Table 9.
Model #
Part #
Description
3115-80
B90-311580 DS1 Network Interface Unit (NIU) with Performance
Monitoring
. CLEI* Code: T1S1ABTAAA. Barcode: 126270. CPR:
D72669.
*CLEI is a trademark of Telcordia Technologies.
Table 9. Ordering and Option Information
13.2
Regulatory Specifications
Certified to UL standard 60590
Recognized to CAN/CSA C22.2 No. 60950
NEBS compliant
Physical Feature
U.S.
Metric
Height
5.6 inches
14.2 cm
Width
0.7 inches
1.8 cm
Depth
6.0 inches
15.2 cm
Weight (approx.)
6 ounces
170 g
Operating Temp.
-40
°
to 149
°
F
-40
°
to 65
°
C
Humidity
0 to 95% (non-condensing)
Table 10. Physical Specifications
13.3
Electrical and Physical Specifications
The electrical and signalling specifications are listed below, and
the physical specifications are shown in Table 10.
Transmission
A.
Insertion Loss (Regen OFF):
1.5 dB, max.
B.
Regen Range:
-30 to 0 dBDSX
C.
Port Impedance:
100 Ohms (
±
22%) at 772 kHz
Detectors
D.
FAC and CPE LOS Detector Thresholds
:
v
-30 dB @ 150 ms
E.
Code Detector Range
: -30 to 0 dBDSX
F.
Code Detector Maximum Error Rate
: 10
-3
Power
G.
Span Power Voltage Drop
: 24V (nom.) at 60 mA
H.
Span Power Operating Current
: 57 to 63 mA
I.
Local Power
: -22 to -56 Vdc,
±
reference to ground
J.
Local Power Current Consumption
: 19 mA, typ. at -48 Vdc
K.
Heat Release (SPAN PWR)
: 1.44 Watts, typ.
L.
Heat Release (LOCAL PWR)
: 0.91 Watts, typ.
M.
Equipped with a 3 V Lithium battery to maintain the real-
time clock. If battery needs replacement, the unit must be
returned to Westell.
