TEW6197 Datasheet, PDF (1/1 Pages) Filtran LTD – ISDN S-Bus Input/Output Transformer

ISDN S-Bus
Input/Output Transformer
The 4 wire interface between Sub-
scriber Terminals and the Network
Termination has been stand-
ardized by CCITT recommenda-
tion I.430. It uses a passive bus
which provides separate receiver
and transmit loops operating at
192 Kbits/s.
Two versions of TEW6197 have
been designed and approved for
use with the following devices:
TEW6197
Siemens
AMD
PEB2080
PEB2081
PEB2085
PEB2086
Am79C30A
TEW6197- 4 Mitel
MT8930A
MT8930B
MT8931B
(See schematic below for correct connec-
tions.)
TEW6197
MECHANICAL
Top view
17.0 ± 0.02
13.0 ± 0.2
13.0
< 13.0
2.54 (8 places)
All dimensions ^0.85
a^0.r⁷e in mm
1.6
2.54
17.8
10.16
RECOMMENDED
FOOT PRINT
TEW6197-4
2
9
3
8
4
7
TEW6197-4
4
7
3
8
2
9
7
Line 8
9
TEW6197
4
3 Device
2
ELECTRICAL
Device
Turns ratio
Inductance
Leakage Ind.
DC Resistance
(7 - 9) : (4 - 2)
(7 - 9)
(7 - 9)
(7 - 9)
(4 - 2)
Output Impedance
Pulse Characteristics
Dielectric Strength, (rms)
TEW6197
PEB2080
PEB2085
PEB2086
Am79C30A
1:2
> 22 mH
< 12 µH
1.0 Ω
9.0 Ω
TEW6197-4
MT8930A
MT8930B
MT8931B
1:2
> 22mH
< 6.0 µH
3.2 Ω
6.3 Ω
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 : [phone] Fax : [phone]
3-21