ISDN S-Bus
The 4 wire interface between Sub-
scriber Terminals and the Network Ter-
mination has been standardized by
CCITT recommendation I.430. It uses
a passive bus which provides separate
receive and transmit loops operating at
192 Kbits/s.
Two versions of TPW3852 have been
designed and approved for use with
the following devices:
Input/Output Transformer
TEW3852
Siemens PEB2080
PEB2081
PEB2085
PEB2086
AMD
Am79C30A
MT8930A, -B, -C
MT8931B, -C
TPW3852
TPW3852-4
Mitel
(See schematic below for correct connec-
tions.)
MECHANICAL
Dot at pin 1
TPW3852-4
5
3
6
1
2
TPW3852-4
3
5
2
1
6
All dimensions
are in inches
2
Line 1
6
TPW3852-4
3
4 Device
5
2
Line 1
6
TPW3852
5
4 Device
3
ELECTRICAL
Device
3852.chp
TPW3852
PEB2080
PEB2085
PEB2086
Am79C30A
(2 - 6) : (5 - 3)
(2 - 6)
(2 - 6)
(2 - 6)
(3 - 5)
1:2
> 22 mH
< 12
碌H
1.0
鈩?/div>
9.0
鈩?/div>
TPW3852-4
MT8930A, -B, -C
MT8931B, -C
ISSUE: G
Turns ratio
Inductance
Leakage Ind.
DC Resistance
1:2
> 20 mH
< 6.0
碌H
3.2
鈩?/div>
6.3
鈩?/div>
98/04/06
Output Impedance
Pulse Characteristics
Dielectric Strength, (rms)
Conforms to the impedance mask specified in I.430
Conforms to the pulse mask specified in I.430
1500 V
1500 V
Filtran Limited
229 Colonnade Road, Nepean, Ontario, Canada. K2E 3K7,
Tel : (613) 226 1626 Fax : (613) 226 7124
3-5
1
