Verilink PRISM 4001 (34-00244) Product Manual - Manual (Page 16)

2-6 Installation PRISM 4001
Dial Backup Port Connection
The front panel Dial Backup port is a 10-pin modular con-
nector that interfaces through the RS-232 DTE port to an
external device for dial backup of the data channel when the
DDS link fails. The 4001 configures and dials the backup
unit using in-band AT commands. This connector is not
used with the internal DBU. The Data In and Data Out pins
are used for this type of connection. The pinout is as shown
in Table 2-V.
For additional information regarding cables, see section
Ordering Numbers on page 1-4 or contact TxPORT.
Network Management
Network management is accomplished through the SUPV
port as described earlier in this chapter. The unit has a Com-
View NMS interface and can be managed under SNMP/Tel-
net when connected to an 8100A Site Controller.
Power Connection
The 4001 requires a -48 VDC power source capable of sup-
plying a 130 mA current. All units in the chassis are pow-
ered by -48 VDC sources which are connected to the 6-
position terminal strip TB2 on the rear on the chassis. The
power supply should be sized for maximum current draw
for the chassis.
Table 2-V Dial Backup Connection
Dial Backup
Connection
Pin
Rx Clock In 1
DTR Out 2
RTS Out 3
Frame Ground 4
Data Out 5
Data In 6
Signal Ground 7
CTS In 8
DCD In 9
Tx Clock Out 10