ESI VideoBridge 2150, Service Manual

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2 . 2 REAR PANEL
F i g ure 2-4 . R e a r Pane l
I
FREQ. 50�6R�::TNESSI I I I I I
145VA IMAXI
NOM RANGE
FUSE 3AG
1250VI
llS
90-132
2.0 AMP
Slow Blow
230 181-249
16 AMP
Slow Blow
2 . 2 . 1 Rea r P a n e l Con t ro l s a n d Connec tors
CD
H D , H S , L S , L D
Four BNe s ty l e con n e c t o r s f o r mak i n g
pa s s i v e l y g u a rded , f o u r- t e r m i na l -
conne c t i on t o t he unk n own .
E L E C T R I CAL SHOCK HAZ ARD EX I STS WHEN BIAS SUPPL I ES ARE
CONN ECTED TO THI S I NSTRUMENT . WHEN EXTERNAL B I AS S UP P L I E S
ARE ATTAC HED , T H E B I AS VOLTAGES ARE PRESENT O N T H E REAR PANEL
BNC C O N N ECTORS . USE ONLY BIAS VOLTAGES UP TO +5 0VDC WITH
EACH B I A S SUPPLY C URRENT L I M I TED AT l OOMA . DO NOT TOUC H ,
C O N N E C T , O R D I S C ON N E C T T H E M E A S U R E D C OMPON E N T O R T H E B N C
CABLES WH I LE B I AS VOLTAGES ARE APPL I ED .
CD
B I AS T e r m i na l s T w o b a n a n a p l u g j a c k s ( w i t h r e m o v a b l e
s t rap l i nk ) p r ov i de c o n n e c t i on o f e x t e r­
n a l bi a s s u p p l i e s to t he comp o n e n t be i n g
te s t ed , u p t o 5 0V DC w i t h b i a s s u pp l y cur-
r e n t l i m i t e d a t 1 0 0mA . B i a s s upp l y
p o l a r i ty mu s t ma t c h t e rm i n a l i nd i c a t o r s .
2 - 2 5
e / s / i 2 1 5 0 /2 1 6 0 5 /8 5