BEL 0556-5841-01

defining a degree of excellence
TOKENRINGNETWORKING
COMPONENTS
960040A
• Designed for use with Texas Instruments
TIC380C30/C60 token ring transceivers
• Space efficient SIP packaging for multi-port hub repeater
and switch applications
• Complies with IEEE 802.5 standards
• Supports STP 150 ohm or UTP 100 ohm cable
ELECTRICALS AT 25ºC
Turns
Ratio
Insertion Loss
(dB) Max
1-8MHz 16MHz 24MHz
0556-5841-01
1.22:1
-0.6 -0.8 -1.9
-7
-25
-30
-25
-14/-23 -12/-20 -8/-17
-45 -30
-25
-50
-40
-35
0556-5841-02
1.22:1
-0.6 -0.8 -1.9
-7
-25
-30
-25
-14/-23 -12/-20 -8/-17
N/A N/A N/A N/A
N/A N/A N/A N/A
-50
-40
-35
0556-5841-06
1.22:1
-0.5 -0.8 -1.7
-7
-25
-18
-25
-14/-23 -12/-20 -8/-17
-45 -30
-30
-20
-50
-40
-30
-25
-50
-40
-35
0556-5841-07
1.22:1
-0.6 -0.8 -1.9
-7
-25
-25
-25
-14/-23 -12/-20 -8/-17
-45 -30
-30
-20
-50
-40
-30
-25
-50
-40
-35
Part No.
Attenuation
Return Loss (dB) Min
Common to Common
Common to Dif
Crosstalk
(dB) Min
TX/RX
Mode Rej (dB) Min
Mode Rej (dB) Min
(dB) Min
33MHz 36MHz 44MHz 100MHz 1-6MHz 6-17MHz 17-24MHz 5MHz 20MHz 70MHz 200MHz 1-4MHz 10MHz 30MHz 100MHz 1-4MHz 10-16MHz 25MHz
-30
-20
-50
-40
-30
SCHEMATICS
0556-5841-01
0556-5841-07
0556-5841-02
0556-5841-06
MECHANICALS
0556-5841-01
0556-5841-02
0556-5841-07
0556-5841-06
Specifications subject to change without notice.
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: BelFuse@belfuse.com
Website: http://www.belfuse.com
defining a degree of excellence
960040A
TOKENRINGNETWORKING
COMPONENTS
APPLICATION CIRCUIT
APPLICATION NOTES
• Bel has created these products for use with token ring 4/16 Mbps chipsets developed by Texas Instruments in 150 ohm
STP and 100 ohm UTP media applications; however, both the 150 ohm and 100 ohm connections cannot be used
simultaneously. The Bel modules provide internal filter networks on the transmit channels, in addition to both transmit
and receive high voltage isolation transformers, plus common mode chokes on both channels for EMI and noise
suppression.
• Suppression of board induced noise can be achieved with precision layout instructions, along with careful consideration
of the selection and placement of discrete components for the interface circuit.
Corporate Office
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302-4496
Tel: 201-432-0463
Fax: 201-432-9542
E-Mail: BelFuse@belfuse.com
Internet: http://www.belfuse.com
Far East Office
Bel Fuse Ltd.
8F/8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel: 852-2328-5515
Fax: 852-2352-3706
European Office
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Preston PR1 8UD
Lancashire, U.K.
Tel: 44-1772-556601
Fax: 44-1772-888366