TM 11-6625-3081-23
1-10.
DESCRIPTION OF ELECTRONIC STATION (cont)
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j.
EXTENDER ASSEMBLY 1A9
The extender assembly 1A9 consists of two HP-IB extenders 1A9A1 and 1A9A2 (Hewlett
Packard Model 37203A), a support shelf kit, and drawer slide sections. The front
panel of each extender contains an input power ON/OFF pushbutton switch and a POWER ON
LED indicator.
It contains two other front panel mounted LEDs used for DATA LOSS and
DATA ERRORS indications.
The rear panel contains a HP-16 coaxial connection for
interconnection between extenders, a 115/230 vac receptacle and fused circuit, a
MASTER/SLAVE switch, and SERIAL DATA RATE switch.
The fused circuit features a safe
guard situation that requires removal of the 115/230 vac receptacle before the fuse
can be removed.
A ground lead is installed on the rear of the extender shelf and
connected to a ground lead on the electronic station.
The HP-IB communication linkup
is set up in a tandem configuration where all extenders are connected in series.
The
extender converts the HP-IB protocol parallel input signal into a series output signal
and transmits same to a receiving extender.
Physical Dimensions:
Length
14.02 in
Electrical Input:
115v +11v -7v, 48 Hz to 66 Hz
Width
8.39 in
Operating Temperature: 32° thru 131°F
Height
3.50 in
Weight
7.7 lb
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