Specifications

115
Remote Control Options (950-9074 and 950-9111)
Motorola PSC/SSC/DDC Controller
Typical cable hookup between the Zetron station card (702-9441) and a Motorola PURC
Station Controller (PSC) or Simulcast System Controller (SSC) is shown below. Please
note that a Motorola PSC or SSC requires an external 202-type modem to encode the
digital paging data. Use of a Motorola PSC can be replaced by Zetron's remote control
option (950-9074) and some Motorola SSC applications by option (950-9111) for the
radio station interface card.
Figure 23: Motorola PSC/SSC Connections
NOTES:
• Zone outputs from Zetron are active low (0 VDC = logic “1”)
• The following settings are typical in the oparam.cds file (see System Configuration
Files on page 217)
• Line Out signals from the Motorola PSC/SSC drive the link.
• Install/troubleshooting notes:
• Make sure the modem is a 202, not a 212.
• Idle state: COR & BUSY LEDs should be lit when not paging; change
station card jumpers JP6 and JP7 as needed.
Meaning cc pp qq ...
Busy time 03 01 00 19 = 25 milliseconds that COR/CAS must be clear
Mode switching time 03 04 00 32 = 50 milliseconds to wait between changes in
PTT relays
Mode signal polarity 02 05 00 = low value for digital page
Digital data polarity 02 06 00 = inverted data
Remote control mode 02 07 04 = External TX-controller RTS/CTS handshaking
ANA PTT NO
DIG PTT NO
COR/CAS
BUSY
TX AUDIO HI/LO
ZONE ADR 8/4/2/1
DIG DATA
ANA PTT COM
DIG PTT COM
GROUND
KA Key Analog
KD Key Digital
CPA
(Clear to Page Analog)
CPB
(Clear to Page Binary)
TONE
ZONE (SSC only)
MOD
SIGNAL GROUND
TX TIP,
RTS Ring
+12V
GND
UDS 202 Modem
Station Card
(P/N 702-9038)
Motorola PSC/SSC/DDC
TX Link Controller