Remote Programming (Figure 7-6); Power Failure Transfer (216 Base Ksu Only) - Samsung DCS-816 Programming Manual

SAMSUNG
DCS-816

7.7 Remote Programming (Figure 7-6)

To remotely program the system, connect a customer-provided modem to one of the serial
interface connectors (DB9) on an SIO1 option card (Figures 3-1 and 3-2). Before connecting the
modem, ensure that the system power is turned OFF. Any external battery, if installed, should
also be removed. Otherwise, the system as well as the modem may be severely damaged.
SIO1 BOARD (DTE DB9)
RXD (2)
TXD (3)
GND (5)
DCD (1)
RTS (7)
DTR (4)
DSR (6)
PIN CONNECTIONS TO MODEM
Use a pin-to-pin RS232C cable. Only pins 2, 3, 4, 5, 6, 7 and 8 are required. When the modem
needs to be more than 5 metres away from the system, shielded computer cable is required.
Connect a male DB9 connector to the SIO1 card and then connect a connector that meets the
requirement of the modem to the other end. The cable must not exceed 100 metres.

7.8 Power Failure Transfer (216 Base KSU only)

If the system loses AC power and has no external battery, the two (2) analogue trunk ports on the
base board are automatically transferred to the last two (2) stations. Refer to section 2.5.
st
1 Analogue Trunk port on Base board
nd
2 Analogue Trunk port on Base board
² CONNECT A PC EQUIPPED WITH PCMMC TO
ONE OF THE DB9 CONNECTORS ON AN SIO1
BOARD
² THE SYSTEM POWER SHOULD BE REMOVED
BEFORE CONNECTING THE DEVICE
7-6
MODEM (DCE DB25)
TXD (3)
RXD (2)
GND (7)
DCD (1)
CTS (4)
DTR (20)
DSR (6)
FIGURE 7-6
to Station 15 (SLT)
to Station 16 (SLT)
Installation
February, 1999