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GateWay Fax Systems, inc. Model 90si Secure Fax Gateway User's Guide
www.gwfs.com, 877-951-9800, info@gwfs.com help line: 877-951-9814 page 2
90si Quick Reference Guide
Your 90si comes from the factory set for the Secure Only mode, whereby the commercial (COTS) fax connects to
the 90si’s FAX jack (the other two phone jacks remain empty) and the 90si’s RS-232 Data cable connects to the
Secure Data port of your crypto device. In this conguration the COTS fax can only be used for classied transac-
tions with the crypto in Secure Data Mode.
Connecting the COTS fax, 90si and Crypto
This diagram shows the default (and recommended) factory conguration for the 90si. Shown are the rear panel
of the 90si, Secure Telephone, Commercial-Off-The-Shelf (COTS) fax and the outside telepone line connection.
Although there are other 90si congurations, this one will work right out of the box. See Section 2.3, Choose a
Conguration, for others.
Transmitting a Secure Fax
Step Procedure
1. Place a call on your secure telephone / crypto.
2. Place it in secure data mode and set the handset on the table
3. Load your document in the facsimile
4. Take the fax machine "off-hook", dial a "1" and press the big Start or Sent button.
("off-hook" button: look on your fax for Hook, Manual Dial, Monitor, OHD, etc.)
5. The fax will begin sending pages, one at a time, and will indicate when it's done.
6. When the fax is done, return the call to Secure or Clear Voice or disconnect.
Receiving a Secure Fax
Step Procedure
1. Answer the incoming call on your secure telephone
2. Place it in secure data mode (either end may do this)
3. Standby, the fax will be received automatically. (Set the fax to Auto-Answer mode)
4. When the fax is done, return the call to Secure or Clear Voice or disconnect.
"Red"
Data Port
90si Secure Fax Gateway
Rear Panel
5VDC Power
Supply
FAX
LINE
PSTN
Secure Telephone
/ Crypto
(Set to Async 9.6kbps)
Telephone
Wall Jack
"Secure"
Phone Line
Commercial-Off-The-Shelf
Fax Machine
(Set to Auto-Answer on 1 Ring)