Mocomtech CRS-300 CRS-320/CRS-340 Jumper Settings, Open Circuit None, DTR to DSR Loop

CRS-300 1:10 Redundancy Switch	Revision 16
Modem, RMI/TMI, and Switch Configuration	MN/CRS300.IOM

Table 5-5illustrates the control signal configuration JP1 and JP2 jumper settings available on the CRS-320 (obsolete) and CRS-340 TMIs:

Table 5-5. CRS-320/CRS-340 Jumper Settings

Jumper ‘JP1’
Control Signal Setting	Jumpers	Settings
RTS/CTS
Open Circuit		None
(TMI as-shipped)
RTS to CTS Loop		1 to 3
		2 to 4

Jumper ‘JP2’

Control Signal Setting	Jumpers	Settings
DTR/DSR
Open Circuit		None
(TMI as-shipped)
DTR to DSR Loop		1 to 3
		2 to 4
TX IF
“User Mute Control”
Connects User DB-25 Pin		3 to 5
23 to Online Modem’s
“Tx_IF_Mute_L”:
0 = Mute = Tx_IF Off
1 = No Mute = Tx_IF On

Note: These jumper settings are available only on the following TMI versions:

•For the CRS-320 (obsolete) – Rev. F. and later versions;

•For the CRS-340 – Rev. D and later versions.

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