Model ATRT-03 (v) Operating Instruction
16
Table 7-3. Model ATRT-03B Front-Panel Controls, Indicators, and Connectors
Fig. 7-3 Index Panel Markings Functional Description
1
None (Display)
LCD screen: 4 line by 20 character, back-lighted
and legible in the sunlight. Displays menus, test
results and status readouts.
2
H
H Voltage Test Connector.
3
X
X Voltage Test Connector.
4
5
120/240Vac, 1A, 50/
60Hz; Fuse: 250Vac,
2A, Fast Blow
Input power connector and fused power switch
with third-wire safety ground.
6
None (Wing nut)
ATRT-03B ground stud. Connect this ground
stud to substation ground.
7
EMERGENCY
TURN OFF
“PUSH”
Emergency turn off test voltage switch.
8
None (Keypad)
Pushbutton operating controls, 16-keys.
9
RS-232C
Computer-interface port, 9-pin, female DB type
connector; RS-232C interface port allows the
ATRT-03B to interface with an IBM PC
computer. Data rate is set to 19,200 baud, 1 start
bit, 8 data bits, 2 stop bits, and no parity bit.
Connector pin functions are:
PIN SIGNAL
2 Rx
3 Tx
5 Gnd
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