Comtech EF Data KST-2000A Dokumentacja Pobierz pdf (Strona 35)

Ku-Band Satellite Transceiver Revision 9

Installation MN/KST2000AB.IOM

2–7

L LNA Power Return +15 VDC Return from LNA

M RESET Reset (momentary low resets

system)

N GND Ground

P CTS EIA-232 clear to send (tied to RTS)

R GND Ground

S +12V (KP10 Power) KP10 power supply output

T 2/4 wire (see note) EIA-485/EIA-422 operation selection

U UL_FLT_NC Uplink fault relay, closed = fault

V UL_FLT_COM Uplink fault relay common

W UL_FLT_NO Uplink fault relay, open = fault

X DL_FLT_NC Downlink fault relay, closed = fault

Y DL_FLT_COM Downlink fault relay common

Z DL_FLT_NO Downlink fault relay, open = fault

a SUM_FLT_NO Summary fault relay, open = fault

b SUM_FLT_NC Summary fault relay, closed = fault

c SUM_FLT_COM Summary fault relay, common

Notes:

1. These signals can be configured as EIA-485, 2-wire, half-duplex or EIA-422, 4-wire,

half-duplex.

2. In 2-wire mode, pins A and B are tied together as are pins C and D.

3. To select 2-wire operation, pin T is left open. Tie pin T to ground for EIA-422

(4-wire) operation.

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Comtech EF Data KST-2000A Dokumentacja Strona 35