Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
CPSIP1002
Circuit Protection SIP Modules
Fuse Products
page 1
Features
Space-saving, vertical, through hole configuration
Tip and Ring protection schemes consist of voltage
protectors (SIDACtor
, TISP
, thyristor, etc.) in
combination with Bel's 1.25A SMP fuses
Customized designs provide solutions for a wide
variety of voltages
Two and four channel packaging on ceramic substrate
Standard designs also available
Fully integrated design helps accelerate time to
market for telecommunication devices
Applications
Digital Subscriber Line (DSL)
Analog Line Cards
T1/E1Interface Circuits
Digital Line Cards
Bel's value-added modules provide circuit protection in a space-saving, vertical-mount, SIP configuration. Designed for use in a
variety of telecom applications, the modules incorporate voltage protectors with Bel's 1.25A, surface mount SMP fuses. These
fuses comply with the Power Cross test requirements UL 1950/60950 and Bellcore/Telcordia GR-1089 for Tip and Ring protec-
tion and withstand lightning surges specified in FCC 47 Part 68.
These Bel modules are ideal for use where high density chipsets are being implemented as they provide an integrated protection
scheme to support the greater number of protection components required. Packaged on ceramic substrate via Bel's high volume
manufacturing techniques, these circuit protection modules utilize minimal board space, while maximizing manufacturing throughput.
The design of these modules can be customized according to the requirements of board design and voltage protection, offering
the flexibility to accommodate a wide range of voltage protection schemes.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
CPSIP1002
Circuit Protection SIP Modules
Fuse Products
page 2
The circuit protection schemes shown here have been used for many years in nearly every telecommunications product sold
in the U.S. Equipment such as fax machines, modems and central office switchers designed for use in Customer Premises
Equipment (CPE) or Central Office (CO) locations must comply with requirements established by multiple standards such as:
FCC 47, Part 68
Telcordia/Bellcore GR-1089
UL/IEC 60950
These standards prescribe various tests to simulate two basic abnormal field conditions:
Lightning
- To protect equipment from the effects of surges caused by lightning, overvoltage protectors including SIDACtor
,
TISP
, thyristor, etc. are utilized in various configurations.
Power Cross
- Equipment certified to GR-1089 and UL/IEC 60950 must also comply with tests simulating contact of a power
line with a telephone line. In these 600 volt tests, protection must be provided to prevent shock and fire hazard, as well as
maintain integrity of the overvoltage protector.
Bel's SMP fuses provide stand-alone power cross protection and are rated to withstand the various lightning surge conditions
that are applied to telecommunications equipment.
Most designs typically employ discrete fuses and overvoltage protectors, usually in surface mount packages, on the main
circuit board. As higher density chipsets are introduced, the number of Tip and Ring channels per board has increased dra-
matically, requiring a greater number of components to be placed.
Bel's integrated SIP protection modules combine fuses, overvoltage protectors and resistor networks in space-saving, vertical
mount configurations, freeing up valuable lateral board space.
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
2-Wire Protection
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
Wire to Ground Protection
or "V" Protection
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
"Y" Inter-wire and Ground Protection
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
"Delta" Inter-wire and Ground Protection
TYPICAL PROTECTION CIRCUITS
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
CPSIP1002
Circuit Protection SIP Modules
Fuse Products
SCHEMATIC
STANDARD 4-CHANNEL DESIGNS
0808-4011-xx
"Y" Protection Scheme
F1
F2
Z1
Z2
Z3
1
2
3
4
5
F3
F4
Z4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0808-4013-xx
2-Wire Protection Scheme
F1
F2
Z1
Z2
Z3
1
2
3
4
5
F3
F4
Z4
Z5
Z6
6
7
8
9
10
F6
F5
Z7
Z8
11
12
13
14
15
F8
F7
16
17
18
19
20
0808-4014-xx
Wire to Ground Protection Scheme
F1
F2
Z1
Z2
Z3
1
2
3
4
5
F3
F4
Z4
Z5
Z6
6
7
8
9
10
F6
F5
Z7
Z8
Z9
11
12
13
14
15
F8
F7
Z10
Z11
Z12
16
17
18
19
20
F1 - F8 = Bel SMP 1.25A
Z1 - Z12 = SIDACtor
, TISP
, thyristor, etc. as specified by customer.
F1 - F4 = Bel SMP 1.25A
Z1 - Z4 = SIDACtor
, TISP
, thyristor, etc. as specified by customer.
F1 - F8 = Bel SMP 1.25A
Z1 - Z8 = SIDACtor
, TISP
, thyristor, etc. as specified by customer.
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
"Y" Inter-wire and Ground Protection
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
2-Wire Protection
Tip
Wire
Fuse
Protected
Side
Unprotected
Side
Ring
Wire
Wire to Ground Protection
or "V" Protection
page 3
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
CPSIP1002
Circuit Protection SIP Modules
Fuse Products
page 4
2.250
[57.15]
0.460
[11.68]
0.160
[4.06]
0.175 0.015
[4.45 0.38]
0.100
[2.54]
typ
0.020
[0.51]
0.127
[3.23]
0.493
[12.52]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.040
[1.12]
0.100
[2.54]
max
0.120
[3.05]
max
0.038
[0.97]
0.010
[0.25]
Fuse Side
2.250
[57.15]
0.460
[11.68]
0.160
[4.06]
0.175 0.015
[4.45 0.38]
0.100
[2.54]
typ
0.020
[0.51]
0.127
[3.23]
0.493
[12.52]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.040
[1.12]
0.100
[2.54]
max
0.120
[3.05]
max
0.038
[0.97]
0.010
[0.25]
Fuse Side
MECHANICALS
STANDARD 4-CHANNEL DESIGNS
0808-4011-xx
0808-4014-xx
0808-4013-xx
STANDARD 2-CHANNEL DESIGN
1.125
[28.58]
0.460
[11.68]
0.160
[4.06]
0.075 0.015
[19.05 0.38]
0.100
[2.54]
typ
0.020
[0.51]
0.127
[3.23]
0.493
[12.52]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
0.040
[1.12]
0.100
[2.54]
max
0.120
[3.05]
max
0.038
[0.97]
0.010
[0.25]
0808-2011-xx
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2002 Bel Fuse Inc. Specifications subject to change without notice. 09.02
CPSIP1002
Circuit Protection SIP Modules
Fuse Products
page 5
TYPICAL APPLICATION CIRCUITS
HDSL
Interface Protection
HDSL Interface Protection
HDSL
Transceiver
Fuse
Tip
Wire
Ring
Wire
Wire to Ground Protection
Tip
Wire
Ring
Wire
Fuse
Power
Sink
S560-6600-xx
S560-6600-xx
Fuse
Tip
Wire
Ring
Wire
Wire to Ground Protection
Relay
SLIC
Fuse
Tip
Wire
Ring
Wire
2-Wire Protection
CDSL
Chipset
Analog Line Card
Circuit Protection
Digital Line Card
2-Wire Protection
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