User's Manual

Page 1–27
18 September 2007
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
eNfusion™ HSD-128 High-speed Data Terminal
(e) HSD-X Remote Status Panel (Optional)
The outputs to the optional “Remote Status Panel” provide a visual indication of
the operational status of the HSD-X. They “mirror” the unit’s front panel LEDs
labeled as Power (LED1), Fault (LED2), and Channel Available (LED3).
Tabl e
1–20 defines the interpretation for each LED. Refer to "Installation" on page 3-1
for detailed installation and circuit requirements.
(f) HSD-X Fault Conditions
A failure in the HSD-X may be because of a number of fault conditions. Upon
detection of a fault condition, the HSD-X activates its red, Fault LED. The
potential fault conditions are:
• HSD/HSD-X communications link fault
• Channel Card fault
• Data I/O fault
• Internal ROM fault
• Internal RAM fault
• Over Temperature fault
G. User Interfaces
The HSD can support multiple voice and data communication configurations depending
on the number of channel cards the unit contains and the mode of installation.
The most likely user configurations include a networking device (such as a router or a file
server) that allows multiple users to share the channel capability offered by the HSD
(single, dual, or multiple channels depending on model, mode, and configuration of the
HSD or HSD-X transceivers installed).
The selected networking device must have the capability to decide which combination of
services is required at any particular moment and activate it accordingly. Therefore,
simultaneous RS-232 and BRI S/T connections are required.
A different way to achieve this functionality is to use the 10BASE-T port to carry a PPP
over Ethernet virtual connection between the networking device (typically a file server)
and the HSD. Support for PPP over Ethernet is also required on the user’s side.
Note: HSD transceivers PN 1110-A-0150 and 1110-A-0160 have Data I/O Type 2 Cards
installed and support the Ethernet interface. All other HSD transceivers must have
service bulletin, 1110-SB-0004 accomplished to support the Ethernet interface. All
HSD-X transceivers support an Ethernet interface.
Table 1–20. HSD-X Front Panel LEDs Output Designations
LED Name LED Color Indication Description
Top (LED1) Power GREEN Power (ac); Flashes at 1 Hz rate while
“in call”
Middle (LED2) HSD-X Fail RED Fault (Illuminates upon HSD-X failure)
Bottom (LED3) Channel
Available
GREEN Channel Available