TriPoint VertexRSI 7200, Operation And Maintenance Manual

Page: 60 / 266

INST ALLA TIO N
4 - 1 4
JP1 (JP2) se l ect e i ther the li near or the A G C mode of operat i on. Pos i t i on ’ A ’ routes
the i nput through the operat i ona l amp li f i er cha i n for A G C mode. Pos i t i on ’B’
coup l es the s i gna l d i rect l y i nto the A /D converter.
R2 (R1 6) form a res i st i ve d i v i der net w ork w h i ch ad j usts the i ntegrat i ng converter’s
U 1 (U 2) reference vo l tage.
R1 4 (R2 6) i s an offset ad j ustment potent i ometer that sets the nom i na l A G C i nput
vo l tage to li near i zed track i ng output vo l tage operat i ng po i nt.
4.3.7 Re mot e Commun i ca t i ons Conn ec t i ons
Tab l es 4-1 0 and 4-1 1 prov i de the connect i ons for the remote commun i cat i on ports
to the 7 2 0 0 A C U. Refer to A ppend i x C for i nformat i on on the remote
commun i cat i ons protoco l . The standard 7 2 0 0 A C U i s conf i gured for RS-2 3 2 C
commun i cat i ons v i a J 4 and J 1 1.
TAB L E 4-11
STANDA R D COMMUN I CAT I ON P O R T CONNECT I ONS ( R S-232C )
J4,J11 DES I GNAT I ON FUNCT I ON
1 PRO T G ND Protect i ve Gnd
2 RS-2 3 2 X D A T A Transm i t
3 RS-2 3 2 RD A T A Rece i ve
7 SIG G ND S i g Gnd
TAB L E 4-12
COMMUN I CAT I ON P O R T CONNECT I ONS ( R S-422 )
J5 DES I G FUNCT I ON
1 GND Ground
2
6
X D A T A- Transm i t (-) *
9 RD A T A- Rece i ve (-) *
1 5
1 6
1 9
X D A T A + Transm i t ( + ) *
2 0 X D A T A SHLD Transm i t Sh l d *
2 2 RD A T A + Rece i ve ( + ) *
2 3 RD A T A SHLD Rece i ve Sh l d *
* Standard connect i on scheme for RS-4 2 2 port.
NOTE: Wh e n us i ng P MCU w i th D i sp l a y COMM P o r t J5 i s not
a v a il a b l e fo r us e w i th a n M&C syst e m.