Multi-Tech Systems DataTalker DT101/xx - Manual (Page 61)

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Chapter 5 - Installation
5.4 Power-On and Checkout
The desktop and rack-mounted versions of the DataTalker differ in how power is applied. The
desktop version has a power switch that you must turn on. The rack version has no power
switch; you apply power by inserting it into a powered-up rack. It is always on as long as the rack
is powered up.
Table 5-3. Power-On and Checkout Procedure
Step Procedure
1 Desktop version: Ensure that the power supply is connected to the unit’s power connector
and an AC outlet.
Rack version: Ensure that the DataTalker is properly seated in a RackTalker rack. Tighten the
front panel screws to ensure a good connection with the RackTalker power bus.
2 Desktop version: Apply power (press the power switch on the back of the unit to I [on]).
Rack version: Plug the RackTalker rack into an AC outlet, if it is not already powered up.
MODEM DSU/TA
DIAL-UP LEASED DIGITAL
VOICE/FAX CHANNEL 1
FXO FXS
EXTERNAL COMPOSITE
DATA/COMMAND
RS232C/V.35 E&M
INTERNAL COMPOSITE POWER
GND
Power
Switch
Figure 5-13. Power Switch (Desktop Version)
3 Verify the states of the following composite link LEDs. The LED should be on for each
installed feature and off for each uninstalled feature:
Composite Link Device LED
Internal 28.8K bps modem MDM
Internal 56K DSU DSU
Internal ISDN terminal adapter TA
External modem, DSU, or TA EXT
External V.35 interface V35
COMPOSITE
LINK
STATUS VOICE /
FAX 1
DATA/
COMMAND ORIG
101 MDM/TA
RXT FCR RD TM V35 EXT MDM DSU
CD RCV XMT CTS 56 RTS NS OOS
28.8 OH DBUP
TA
DTR
2B FXS FXO E&M FAX XMT RCV XSG RSG COM XMT RCV FC
VOICE /
FAX 2 RSG XSG RCV XMT FAX E&M FXO FXS
Data / Voice / Fax Concentrator
Figure 5-14. Front Panel
4 Establish a link with the remote DataTalker if the local DataTalker is not configured to link
automatically.
5 Verify that the composite link is communicating with the remote DataTalker. The RD LED
should be off. The following LEDS should be on:
Terminal adapter: CD, RCV, XMT, CTS, DTR, and 2B (if so configured)
Modem: CD, RCV, XMT, CTS, and DTR
DSU: CD, RCV, XMT, CTS, and RTS