TM 11-6625-1668-12
Control, Indicator, or Connector
Function
Sw Pos
Connection
CHARACTER LENGTH
(11-position rotary switch)
SYNC ............................
Enables generator to produce synchronous signals (no start-stop pulse).
7 to 16 ...........................
Selects character length in bits from 7 to 16.
CHARACTER RELEASE
(3-position toggle switch)
EXT ...............................
Permits control of character release by an external 60 volts 2 ma. pulse.
FREE RUN ...................
Permits release of characters in a free-running mode.
MANUAL .......................
Permits release of characters by the manual step switch.
SINGLE
(2-position toggle switch,
Releases one character at a time when the CHARACTER RELEASE switch is Bet to MANUAL (start-
momentary make)
stop only).
Sw Pos
Connection
BAUD RATE
(14-position rotary switch)
37.5 to 9600. .................
Selects any one of 12 baud rates plus a spare.
EXT (200X) ...................
Permits use of external timing at 200 times desired baud speed.
OSC
(2-position toggle switch)
INT ................................
Selects internal oscillator for time base.
EXT (2X) .......................
Provides for external timing input at 2 times the baud rate.
ALARM
(3-position toggles switch,
RESET ..........................
Resets the alarm circuit to normal.
momentary RESET)
ON.................................
Permits alarm circuit to operate.
DISABLE.......................
Disables alarm circuit.
OSC FAILURE
(indicator lamp)
Lights when clock oscillator fails or divider board is not working.
DRY CONTACTS
(output jack)
Tip .................................
Tongue.
Sleeve............................
Battery return.
DATA 6/12V
(Output jack)
Tip .................................
Low level data.
Sleeve............................
Low level data return.
CLOCK 6/12V
(Output jack)
Tip .................................
Low level clock.
Sleeve............................
Low level clock return.
Figure 3-1.
SG-860/GGM-15(V), controls and indicators.
3-2
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