Section 4. Installation
4-5
Table 4. INSTALLATION-3. Connector TB2 Pin-out
TB2-#
Signal
Function
13
(not used)
14
Ground
15
RS-232 receive
Serial data from CRT
16
RS-232 ground
Serial ground
17
RS-232 transmit
Serial data to CRT
18
(not used)
19
(not used)
20
PTT common
PTT relay common
21
PTT N.O./N.C.
PTT selectable N.O. or N.C.
22
(not used)
23
(not used)
24
(not used)