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
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
Lit when module (Comm3, Comm4, or Comm5) is currently receiving.
Lit when module (Comm3, Comm4, or Comm5) is currently transmitting (Tip).
Lit when module (Comm3, Comm4, or Comm5) on ring (Ring).
Lit when module (Comm3, Comm4, or Comm5) on carrier detect.
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.
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