Terrasat Rx 1+1, Operation Manual

Page: 53 / 174

Installing the Rx 1+1 System
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3-17
The connector schedule for an AC-powered interface module is listed in Table 3.2 . .
Note:
The J3 connector is only available for two-input AC-powered Rx 1+1 systems.
For units that are DC powered, a mating M&C connector for J1 is included with the
Rx 1+1 system. Power for the Rx 1+1 system is supplied directly through the external
power connectors J2 and J3. Voltage can range from 20 VDC to 60 VDC.
For units that are AC powered, the voltage from AC mains is applied directly to the J2
connector for single-input sytems and to both the J2 and J3 connectors for two-input
sytems. The front end will work with both 115 VAC and 230 VAC,
Terrasat offers a range of power supplies (PSUIs) with auto-ranging AC front ends
that will work with both 115 VAC and 230 VAC. Terrasat supplies one Y-cable for
each PSUI together with the Rx 1+1 system that is used to connect supply cables to the
Rx 1+1 interface module.
User Interface J1 Connector
– The M&C user interface is a 19-pin socket connector
used to enable remote monitoring and control of the Rx 1+1 interface module
operating parameters. Pin assignments are listed in
Table 3.3 . If the M&C port of the
Rx 1+1 interface module is used, the cable should be a shielded multiconnector cable
with at least two twisted pairs. The twisted pairs used for TCP/IP purposes must have
an impedance of 100
Ω . See the cable drawing in Appendix F . An assembled IP test
cable is available from Terrasat.
Table 3.2
AC-powered Rx 1+1 Interface Module Connector Schedule
Ref
Desig Function Connector Connector Mate
J1 User Interface
Amphenol Cylindrical Box Mtg Rcpt, 19S

(PT3122E14-19S)
Amphenol Cylindrical Straight plug, 19P

(PT3116F14-19P)
J2, J3 AC Power
Amphenol Power Connector Rcpt (3+PE)

(T3110-000)
Amphenol Power Connector Rcpt (3+PE)

(T3109-001)
J4, J5 Rx Input Type-N receptacle Type-N plug
J6 Rx Output Type-N receptacle Type-N plug
J7
Waveguide Switch
Control/Indicator Amphenol Cylindrical Box Mtg Rcpt, 6S

(PT3112E10-6S)
Amphenol Cylindrical Straight plug, 6P

(PT3116F10-6P)
Table 3.3
Pin Assignments for the J1 User Interface Connector
Pin Function
A RS485 (+)
B RS485 (-)
C Hand-held Terminal Power (+)
D RS232 RXD