Terrasat IBUC - Table 4-2 IBUC M&C Connector J2, Pin Assignments

IBUC Operation Manual
Terrasat Communications Inc.
Rev. A
4-7
amps at 20 VDC and the LNB can draw up to 400mA at 15VDC. The maximum voltage
drop for a 24VDC IBUC is 4 volts and for a 48VDC IBUC is 11 volts.
The cable should also have good shielding effectiveness in order to prevent outside
interference.
Fire codes may require that cables in occupied buildings be installed in steel conduit.
Local government agencies may waive this requirement with the use of Plenum cables,
which are standard cables encased in solid Teflon. Check codes in your area.
NOTE: Equipment outage due to faulty installation is not covered by your
warranty. Terrasat recommends the use of OEM procedures for making cables
and connectors.
M&C Interface J2: The M&C Interface is a 19-pin, circular, female connector used to
allow remote monitoring and control of IBUC operating parameters. Pin assignments
are shown below. If the M&C port of the IBUC is going to be used the cable should be a
shielded multi-conductor cable with at least two each 100 ohms twisted pairs (for
TCP/IP). Please also see the IP cable drawing attached. An assembled IP test cable is
available from Terrasat.
Table 4.2: IBUC M&C Connector J2, Pin Assignments
IBUC J2
PIN FUNCTION
A RS485 (+)
B RS485 (-)
C HANDHELD TERMINAL POWER (+)
D RS232 RXD
E RS232 TXD
F HHT, RS232, RS485 Common
G TCP/IP TX +
H TCP/IP TX -
J TCP/IP RX +
K TCP/IP RX -
L IBUC ALARM OUTPUT Normally Open
M IBUC ALARM OUTPUT Common
N IBUC ALARM INPUT
P IBUC ALARM OUTPUT Normally Closed
R 1+1 SWITCH COMMAND A
S 1+1 SWITCH COMMAND B
T 1+1 SWITCH INDICATOR A
U 1+1 SWITCH INDICATOR B
V 1+1 Redundancy Enable
Note that pin F is the return to close the circuit for RS232