18
Assembling the SmartServer Hardware
DB-9 (DTE) Pin
Description
1
NC (No connect)
2
RxD (Receive Data)
3
TxD (Transmit Data)
4
NC (No connect)
5 GND
(Ground)
6
NC (No connect)
7
NC (No connect)
8
NC (No connect)
9
NC (No connect)
DB-9 Shell
Earth Ground
Note
: Pin 1 of the RS-232 console port can be attached to the carrier detect line of an external GSM
modem.
Connecting the Telephone Line Port
!
Safety Warning
The SmartServer’s telephone modem should only be used with telephone circuits
equipped with proper lightning and transient protection circuitry. This minimizes the risk
of shock or damage should lightning strike on or near a telephone circuit to which the
SmartServer is connected.
For SmartServer models 72102, which contain a 56K V.90 analog modem, you can connect the RJ-11
telephone line port. This enables the SmartServer to make dial-out connections to TCP/IP networks.
To connect the telephone line port on the SmartServer, you connect one end of a compatible two-wire
POTS line with a suitable male RJ-11 connector to the telephone line port on the SmartServer and then
connect the other end to a POTS line connection. Note that the SmartServer analog modem is not
compatible with ISDN circuits.
!
Caution
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord
