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4000 4 319 _EN - 02/09
ENGLISH
[22] TTL OUTPUT (
Output TTL
)
The TTL output signal from the generator is available on the BNC socket [21].
It is a square signal compatible with TTL logic gates. Its amplitude is fixed (5V), and its duty cycle is adjustable
using the
%Duty
button [13]. Its frequency is identical to that of the output signal.
This output can be subjected to a permanent short-circuit without damage to the unit.
[23] RS-232 INTERFACE
You can control your generator via the RS-232 link (see 6-3 and table of codes).
Use a shielded NULL-MODEM cable 3 metres long maximum.
[25] MAINS SOCKET WITH FUSE-HOLDER
This socket receives the mains cable. The fuse-holder is fitted with a T200mA 5x20 fuse.
[24] O - I SWITCH
Switch depressed to O: the generator is off.
Switch depressed to I: the generator is on.
6 - INSTALLATION AND OPERATION
6-1
INSTALLATION
The generator must rest on its 2 rear rubber stops and on its 2 front feet (folded or fully unfolded).
Connect the mains cable to the socket [25] at the back of the unit.
Connect the other end of the cable to a 230V AC mains socket. Your generator is ready to operate.
6-2
OPERATION
Depress the on/off switch [24] to
I
. The display lights up.
The generator uses the last setup used before switching off.
The signal is then available on the 50
Ω
BNC [22] and in a logic form on [21].
A 30
-
minute warm-up time is necessary to reach the specifications.
PRECAUTION: Set the signal amplitude so as to remain below the maximum allowable voltage.
6-3
RS-232 INTERFACE
Your GF 266 generator has an RS-232 interface, which is simple, user-friendly and comprehensive.
All functions are accessible via the RS-232 interface.
This interface enables you to control and monitor the GF 266 from a PC, as if you were next to the unit.
6-3-1 PREPARING FOR COMMUNICATION:
- Connect the generator to the serial port of the PC using a "
null modem
" RS-232 cable (cross-over).
Note: It is recommended to use a
shielded
cable in order to minimize the interference caused by the data conveyed
between the unit and the PC. The cable length must not exceed 3 metres.
fig. 11
fig. 12
Summary of Contents for GF 266
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