DCB
LL-9.6FP
Fast Poll synchronous and asynchronous
modem
General
Indicators (front panel)
Controls
Telco
Data Port
Network Management
Front Panel and Network Management Port Commands
Additional Commands in Network Management Port
Physical/Electrical
The DCB LL 9.6 FP modem is a full featured fast poll leased line modem with
the best price/benefit ratio in the industry. The LL 9.6 FP modem operates over
four wire unconditioned leased lines at 9600 bps synchronous or asynchronous. It
is an excellent choice for multi-point and point-to-point applications with
polled terminal devices.
An LCD front panel or the Network Management Port is used to configure the local
modem or perform line diagnostics including the V.54 loopbacks. In addition, the
Network Management Port can be used to configure the remote mode.
The LCD front panel is used to set-up the following parameters for the local
modem:
Modem Rate
Modem Address
RTS/CTS Delay
RTS Holdover
RTS Stream
RTS Control
Transmit Carrier
Transmit Clock Source
Synchronous or Asynchronous
Receive Level
Transmit Level
Transmit Data Clamp
In addition, the LCD front panel can initiate the following diagnostic tests:
Line Test
Digital Loopback
Analog Loopback
Remote Digital Loopback
Send 1004 Hz tone
Remote send 1004 Hz tone
The LCD front panel continuously updates and displays the receive level. This
is the most useful information when diagnosing line troubles with the telephone
company.
The Network Management Port is accessed through a 9-pin RS-232-D asynchronous
port on the rear panel. It can access all of the set-up and diagnostic tests
available through the LCD front panel and be used to configure the remote modem
and measure the remote receive level.
Rate: 9600 bps
Fallback rates: 7200 and 4800 bps
Application: Multi-point or point-to-point
Facility: Four wire leased lines
Mode: Full Duplex
Signaling: Fast train mode for multidrop, CCITT V.29, Automatic Adaptive Equalization, 2400 baud, QAM modulation, 1700 Hz carrier frequency
Timing: Synchronous or Asynchronous 22 ms RTS/CTS delay
Power, Transmit Data, Receive Data, Carrier Detect, and Clear to Send
16 character by 2 line LCD display for configuration and testing
Front panel push buttons for Next, ->, INCR, OK, RESET
Interface: Four wire lease line
Connector: RJ11-C
Interface: RS-232-D, V.24
Connector: DB25 female
Timing: Synchronous or Asynchronous
Interface: RS-232-D, V.24
Connector: DE-9 female
Timing: Asynchronous
Rate: 9600, 7200 or 4800 bps
Sync/Async
Transmit timing: Internal, External or Slave
Receive level: -26 or -43 dBm
Transmit level: 0 to -15 dBm
RTS control: Forced on or from interface
Transmit Data Clamp: On or off
Test line
Digital loopback
Local analog loopback
Remote digital loopback
Send 1004 Hz tone
Remote send 1004 Hz tone
Local and remote Show Config
Remote modem Type
Local and remote Set ID
Remote Measure Level
Power requirements: 120 VAC, 43 Watts, .36 Amps
10 1/4" x 9 3/4" x 2 1/4"
Rear view of DCB LL 9.6 FP Modem