Miscellaneous; Figure 1-1. Att-20 Dimensions - Hitachi ATT-20 Installation, Operation, Troubleshooting

1.3.4. Miscellaneous

Reverse battery protection:
Operating temperature range:
Maximum block length:
Recommended Relay:
701)
Overall Dimensions:
Mounting Hole Dimensions:
Weight:
Terminal Connections:
4 5/8 (REF)
2 1/4 (REF)
3
1
2
4
+
BATTERY XMT
-
LOWER
SHUNT
MODEL,ATT-20
MODE
UNIT PC.NO.
SER.NO.
FREQ.
REV.
Copyright 2019
300
ft.
series mode at 3 ohms/1000
Refer to Figure 1-1.
4 lbs., 14 oz.
AAR
5
7
6 8
+
RCV
RELAY
-
RAISE
RELAY VOLTS
AUDIO TRACK
TRANSCEIVER

Figure 1-1. ATT-20 Dimensions

SM 6299 Rev. 3, March 2019
ATT-20 Audio Track Transceiver
Built-in
- 40°C to +70°C
shunt mode at 3
ohm/1000 ft.
PN-150B, 400 ohm coil, (STS USA N322500-
2¼" x 8½"
(REF)
2 1/8
R14
TL4
ballast; 150
ballast.
ft.
6 1/16 (REF)
TL6 TL5
TL1
TL3 TL2
ft.
1-3