8
Battery Backup Operation
The XRD-8050 (stand-alone) contains a rechargeable battery pack that will
provide up to 12 hours of operation in the event of a primary power failure.
Switchover to battery operation is automatic and, upon return to primary power,
recharging is also automatic.
Note that the XRD-8050 must be connected to
primary power for at least 16 hours to assure full charging of the battery pack.
The battery pack is disconnected during shipment. Be certain to reconnect the
battery pack by plugging the small 2-pin plug into the appropriate jack
.
9
The FIBERLINK XRD-8050/RK is designed to plug directly into one position of a
Model MCR-2000 rack mountable card cage. All operating power is then
provided by this card cage. The optical and RS-232 signal connections are
available on connectors provided on the rear on the plug-in assembly.
The XRD-8050/RK is fully compatible with the XRD-8050 stand-alone version.
INSTALLATION INSTRUCTIONS FOR XRD-8050/RK
(Rackmountable Version)
Signal Connections
The signal connections for the XRD-8050/RK follow the recommended EIA
DCE format for RS-232. These connections are described below and must be
compatible with the equipment being used. All signal connections are made via
an industry standard DB-25S connector. Be certain to make all connections
carefully and check that the correct pins are being used.
Description
EIA Designation
DB-25S Pin #
Chassis Ground
(AA)
1
Transmitted Data
(BA) (input)
2
Received Data
(BB) (output)
3
Request to Send
(CA) (input)
4
Clear to Send
(CB) (output)
5
Data Set Ready
(CC) (output) 6 (jumped to 20)
Signal Ground
(AB)
7
Data Carrier Detect
(CF) (output)
8
Data Terminal Ready
(CD) (input)
20 (jumped to 6)
All other signal pins are not utilized and all other details are the same as for the
XRD-8050 stand-alone version.
