Raisecom
RC3000-15 (P100R001) Hardware Description
8 Voice cards
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
86
Table 8-19
Jumper used by the 16E&M/8E&M/4E&M card
Jumper
Function
Status
Description
JP1
Configure the
mode for
downloading
the MCU
program.
Short-circuited
Enter ISP mode. In this mode, the
RC3000-15 is waiting to be upgraded.
You can upgrade MCU program
through the serial interface on the
backplane.
Disconnected
Enter normal working mode.
After upgrade, JP1 must be in all OFF status; otherwise, the RC3000-15 will
malfunction.
Table 8-20 lists jumpers S1, S2, and S3 used by the 16E&M/8E&M/4E&M card.
Table 8-20
Jumpers S1, S2, and S3 used by the 16E&M/8E&M/4E&M card
No.
Jumper
Function
Mode
Rx gain
Tx gain
1
Short-
circuited S1
Configure
initial values
upon card
startup.
E&M2
0 dB
-3.5 dB
2
Short-
circuited S2
E&M4
+14 dB
+4 dB
3
Short-
circuited S3
E&M4
0 dB
0 dB
Only one of S1, S2, and S3 should be short circuited while others should be
disconnected.
If all of S1, S2, and S3 are disconnected, the default value is No.1 upon startup.
If two or all of S1, S2, and S3 are concurrently short circuited, the default value is
according to priority: S1 > S2 > S3.
To configuring default value, configuring jumper is of lower priority than
configuring through network management; it becomes invalid after the
configuration through network management takes effects.
8.3.7 Specifications
16E&M
Table 8-21 lists parameters of the 16E&M card.