User's Manual Part 2

CN6 CN7
FacilitiesMARC
Front Panel assembly
CN1
CN5CN6
Interface module
CN24
(Rear Panel)
CN3 CN4 CN2
PSU-2
CN1
L
N
E
CN4
ac Input
(Rear Panel)
L
N
E
Mains IEC
connector
filtered/
fused
PSU-1
CN1
L
N
E
CN4
ac Input
(Rear Panel)
L
N
E
Mains IEC connector
filtered/
fused
CN12
CN7
CN15
CN27
CN16
CN4 CN3 CN1
CN10
CN11
CN2
CN4 CN5
Power Supply
Regulation
CN3
(Rear Panel)
CN7
CN6
Supply shown in
off position
132
CN2
1 2
1 3 2
CN1
4
CN8
1L
2N
3E
CN9
21
dc Input - 1
dc Input - 1dc Input - 1 dc Input - 1
(Rear Panel)
3
21
dc Input - 2
dc Input - 2dc Input - 2 dc Input - 2
(Rear Panel)
3
Combiner BIT
module
Fan
CN13
CN5
CN26
CN17 CN22
CN10
CN1 CN8
CN2 CN4 CN5 CN7 CN9 CN6 CN12
PA-1
CN3
CN14 CN6 CN25 CN18 CN23
Fan
CN10
CN1 CN8
CN3 CN2 CN4 CN5 CN7 CN9 CN6 CN12
PA-2
1L
2N
3E
7 8
24
17
17
19
20 20
11
12 13 14
15
11
12 13 14
15
16
31
9
10 10
6
19
26
18
17
17
(Rear Panel)
18
Interface MARC Port
Name Characteristic
Connections 1
FacilitiesInterface
Connections
3
Name Characteristic
7 5 6 4 2 3 1 9 8
14 15 13 12 11 10
CN5-4 CN5-6 CN5-7 CN5-5 CN5-3 CN5-2 CN5-1 CN5-8 CN5-9
CN5-14 CN5-15 CN5-13 CN5-12 CN5-11 CN5-10
PA Bias Enable
Reflected Power
Fan Enable
PA Temperature
Drive Detect
PA Count
Connections
6
Name Characteristic
50 W = 670 mV
TTL - High for fan on
TTL - High for bias on
10 mV / °C +0.5 V
0.5 V for +10 dBm
TTL, Pulse width = 10 ms/50 W PA
Forward Power Sense CN27-1 17 dBmCN4-1
Interface
Connections
7
Name Characteristic
Interface
1 dBm carrierRF DriveCN3-1CN16-1
Connections
8
Name Characteristic
RF Output
PA
CN24-1 10 to 100 WAntenna Port
Connections
9
Name Characteristic
Combiner BIT module
CN15-1 CN15-5 CN15-4 CN15-3 CN15-2 CN15-6
CN2-3 CN2-5 CN2-4 CN2-6 CN2-2 CN2-1
Interface
PA Heatsink
CN6 Fan Control
Ground 0 V
10 V approx or 26.5 VFan
Fan
PA-1 PA-2
Connections 10
Name Characteristic
PTT
Reflected Power
Fan Enable
PA Temperature
Drive Detect
50 W = 670 mV
TTL - High for fan on
TTL - High for bias on
10 mV / °C +0.5 V
0.5 V for +10 dBm
TX Key TTL - High for PA Keyed
Present +5 V
Fail 3 TTL Low to indicate failure
Ground 0 V
Remote on/off
DC Detect AC Detect
Open collector
15 Von,0 Voff
0V=off,opencollector=on
n/c n/c n/c n/c n/c n/c
Forward Power Sense 17 dBm
1 dBm carrierRF Drive
Combiner BIT module Combiner BIT module
Ground 0 VCN15-7 CN2-7
Combiner Supply Unreg current limited at 250mACN15-8 CN2-8
PA-1 Fail Indication TTL, 0 V = fail
CN15-9
CN2-9
CN15-10 CN2-10 PA-2 Fail Indication TTL, 0 V = fail
(Rear Panel)
1
2
CN8-1 CN8-2
Fig 35 T6T VHF Amplifier Wiring and Interconnection Diagram