Comtech EF Data KST-2000L - Manual (Page 23)

Satellite Terminal System Revision 2
Summary of Specifications MN/KST2000L.IOM
2.1.1 Solid-State Power Amplifier (SSPA)
2.1.1.1 SSPA Monitor and Control Interface
The M&C function for all SSPAs with output powers of ≤ 4W should conform to
requirements of Table 2-3.
Table 2-3. SSPA M&C Specifications
SSPA M&C Specification
Signaling Type EIA-485 (2-wire, half-duplex)
Baud Rate 83333 bps
Data Structure
11 Data Bits
1 Start Bit
1 Stop Bit
8 Data Bits
9 Data Bits
= 1 when previous 8 bits represents a slave address; = 0 otherwise
Type Pin Function
M&C Communication A EIA-485 + RX/TX
B EIA-485 – RX/TX
DC Power C +10.5 VDC
D +10.5 VDC
E +10.5 VDC
F +10.5 VDC
G GND
H GND
I GND
J GND
K GND
Note: Connector type is PT00E-12-10S.
2–3