Parts Lists; Att-20 Audio Track Receiver Kits; Att-20 Audio Track Transceiver Units - Hitachi ATT-20 Installation, Operation, Troubleshooting

6.

PARTS LISTS

6.1. ATT-20 Audio Track Receiver Kits

Each kit consists of a complete ATT-20 unit for series mode application and the Cable
Compensating PCB. Table 6-1 lists the kit part numbers.
Kit Part No,
X451052-3907
X451052-3908
X451052-3909

6.2. ATT-20 Audio Track Transceiver Units

The ATT-20 unit part numbers and descriptions are listed in Table 6-2. Table 6-3 lists
other devices that are used in certain ATT-20 applications.
Item
Secondary Surge Protector
USSP-21
Surge Ripple Filter
Lightning Arrestor
Cable Compensating PCB
Copyright 2019
Table 6-1.
ATT-20 Unit
N451052-3904
N451052-3905
N451052-3906
Table 6-2.
Part No. Frequency (KHz)
N451052-3901
N451052-3902
N451052-3903
N451052-3904
N451052-3905
N451052-3906
Table 6-3. Miscellaneous Application Units
Part Number
N451522-0525
N451890-0301
N451552-0101
N1310-0201
SM 6299 Rev. 3, March 2019
ATT-20 Audio Track Transceiver
ATT-20 Unit Kits
Cable Compensating PCB
N13100201
N13100201
N13100201
ATT-20 Unit (Only)
Application
12.28 Shunt
15.00 Shunt
20.00 Shunt
12.28 Series
15.00 Series
20.00 Series
Application
Between ATT-20 unit and track
Between ATT-20 power input and DC source
Across battery terminals of Surge Ripple Filter
Application
Series
Series
Series
6-1