DL8000 Preset Instruction Manual
3-42
Modules
Revised February-2016
Note
:
When installing a dial-up modem module, you must remove
power from the DL8000.
The dial-up modem provides communications with speeds up to 14.4K
bps with V.42 bis and V.42, MNP2-4 and MNP10 error correction.
The dial-up modem module is FCC Part 68 approved for use with
PSTNs. The FCC label on the module provides the FCC registration
number and the ringer equivalent. The dial-up modem module supports
data compression, error correction, and nonvolatile RAM for permanent
storage of the modem configuration.
The dial-up modem module interfaces to two-wire, full-duplex
telephone lines using asynchronous operation. The module interfaces to
a PSTN through an RJ-11 jack. The dial-up modem can be controlled
using industry-standard AT command software. A 40-character
command line is provided for the AT command set, which is compatible
with EIA document TR302.2/88-08006.
The dial-up modem automatically hangs up after a configured period of
communications inactivity. The dial-up modem provides automated
dial-up alarm reporting capabilities.
Table 3-18. RJ-11 Field Connections
Signal
Pin
Tip
3
Ring
4
LED indicators on the module show the status of the Receive (RX),
Transmit (TX), Ring (RI), and Carrier Detect (CD) control lines.
Table
4-19
displays connector signals and their functions.
Table 3-19. Modem Signal Routing – Comm3, Comm4, and Comm5
Signal
Function
Terminal
RX
Lit when module (Comm3, Comm4, or Comm5) is currently receiving.
1
TX
Lit when module (Comm3, Comm4, or Comm5) is currently transmitting (Tip).
3
RI
Lit when module (Comm3, Comm4, or Comm5) on ring (Ring).
7
CD
Lit when module (Comm3, Comm4, or Comm5) on carrier detect.
9
Notes
:
If you are installing a modem module, it is recommended that you
install a surge protector between the RJ-11 jack and the outside line.
The dial-up modem is
not
hot-swappable
or
hot-pluggable. When
installing a dial-up modem module, you
must
remove power from
the DL8000.