Specifications

Page 18–4
FOCUS System Manual
2. Start the FCS.
Bring up the FOCUS Configuration Software
(FCS), if it is not already running, by clicking
on the FCS program icon .
3. Bring the FOCUS chassis “on line”.
Click on the “Online” speed button
.
This uploads to the FCS the current status,
settings, operating statistics, etc., for the
FOCUS chassis — and the 64K module.
4. Unlock the FOCUS chassis.
If the chassis is locked, execute the “Unlock
Configuration” command on the FCS Setup
menu or click on the “Unlock FOCUS
Chassis” speed button .
This puts the chassis — and the 64K module
— into a configurable state. It also automati-
cally configures the module to its default
settings, as described above.
5. Connect your test equipment to the 64K
interface module.
Carefully wire a DB25 male connector for
your test equipment, as follows:
If you are using a Fireberd Model 6001
equipped with the RS449/530 and/or V.35
interface options, connect the FOCUS
interface and the Fireberd using the pin
connections shown in Table 18-2. Always
maintain the correct polarity.
If you are using a Lynx Digital Network
Tester, remember that there are two different
connectors at the back of the Lynx: a V.35 and
an X21.
When testing a 64V module, you must
connect to the V.35 connector, being sure to
use the correct polarity. Table 18-2 shows the
pin-to-pin connections between the V.35 and
the FOCUS DB25 female connector.
When testing a 64R/64K module, you must
connect to the X21 connector according to the
pin connections in Table 18-3. Again, be
careful to maintain the correct polarity.
FOCUS DB25 Lynx X21
2+ 2
14- 9
3+ 4
16- 11
15+ 6
12- 12
Table 18–3. FOCUS/Lynx X21 Pin Connections
FOCUS DB25 V.35 EIA RS-449
2+ P 4
14- S 22
3+ R 6
16- T 24
17+ V 8
9- X 26
15+ Y 5
12- AA 23
1,7 Gnd A, B 1,19
Table 18–2.
High Speed Data (64K) Module Pin Connections