User's Manual Part 2

Control and Remote Interface

Signal Name Backplane Backplane Signal Type Description

Control/Remote Pin

Standby CMD (FA) J19-29C J12-1 Discrete open collector input Low indicates FA requests the xmrt go to standby

Operate CMD (FA) J19-30C J12-3 Discrete open collector input Low indicates FA requests the xmrt go to operate

Aural / Visual Mute (FA) J19-31C J12-5 Discrete open collector input Low indicates FA requests an aural visual mute

Visual Mute (FA) J19-32C J12-3 spare input

Ext Ref Present (FA) J19-2B J12-9 spare input

ABS Standby CMD J19-3B J12-11 Discrete open collector input Low indicates FA requests the xmtr go to standby

EXT Operate output J19-4B J12-13 Discrete open collector input Low enables ext amp when xmtr goes to operate.

EXT Visual ALC Input J19-5B J12-15 spare input

XMTR Interlock Iso Return J19-6B J12-18 Ground Ground return. Can be jumpered directly to gnd

or source pin of FET so the xmtr interlock can be

daisy chanied w/ an external amp

XMTR Interlock J19-7B J12-19 Discrete open collector input low indicates xmtr interlock and no faults

EXT O/P Amp Mod Status J19-8B J12-24, J13-23 Discrete open collector input low indicates external amp fault

EXT P.S. Status Amo O/P J19-9B J12-26, J13-24 Discrete open collector input low indicates external amp power supply failure

Operate Ind J19-10B J12-31 Discrete open collector input low indicates xmtr is in operate mode

EXT Overtemp (Amp) I/P J19-11B J12-33, J13-20 Discrete open collector input low indicates ext amp above normal temperature

EXT Refl Pwr (Amp) I/P J19-13B J12-37, J13-20 Discrete open collector input indicates reflected power of the remote amplifier

Standby CMD (RCVR) J19-14B J12-29 Discrete open collector input low indicates external RCVR requests xmtr go

into standby mode

Operate CMD (RCVR) J19-15B J12-29 Discrete open collector input low indicates external RCVR reguests xmtr go

into operate mode

RMT Operate Indicator J19-17B J13-4 Discrete open collector input low indicates xmtr is in operate

O/P Amp Mod Status O/P J19-18B J13-7 Discrete open collector input low indicates no faults in the amp mod

RMT FWD Power O/P J19-19B J13-8 Analog O/P 0-1.25V loop through from IF proc, indicates fwd o/p pwr

RMT REFL Power J19-20B J13-12 Analog O/P 0-1.25V loop through from pwr amp mod’s refl pwr

RMT XMTR Fault Ind J19-21B J13-14 Discrete open collector input low indicates xmtr fault

IF Present Status O/P J19-22B J13-15 Discrete open collector input low indicates no IF to the IF processor module

RMT PLL Locked Ind O/P J19-23B J13-16 Discrete open collector input low indicates freq gen / upconv is unlocked

RMT XMTR Overtmp Ind J19-24B J13-18 Discrete open collector input low indicates xmtr pwr amp above normaltemp

P.S. Fault Indicator J19-25B J13-19 Discrete open collector input low indicates xmtr P.S. failure

EXT PLL Ref Present O/P J19-26B J13-25 Discrete open collector input low indicates loss of 10MHz reference

RMT XMTR J19-24A J13-3 Discrete open collector input low indicates remote interface requests xmtr go to

Standby CMD standby

RMT XMTR J19-25A J13-1 Discrete open collector input low indicates remote interface requests xmtr go to

Operate CMD operate

Encoding Pulse I/P J12-17 Input input from external encoder / scrambler