12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 169
Input Module Reference Data
Input Adapter Panels
Figure 7-9. Input I/O Adapter for One-Port Input Modules
The Input Adapter (part number 22013069-002-0) has a switch-selected Siemens
1.6/5.6 mm connector and a DE9 connector; the input termination impedance is
switch-selectable between 50, 75, 100, 120, or 2.2 kΩ.
The Input Adapter (part number 22013069-003-0) has a switch-selected Siemens
1.0/2.3 mm connector and a DE9 connector; the input termination impedance is
switch-selectable between 50, 75, 100, 120, or 2.2 kΩ.
The rear panel of the Input adapter contains four SCSI-II type connectors that
connect to each Input module connection on the rear panel of the shelf via a
supplied 1-m input cable. A frame ground lug is supplied to connect a frame ground
connection.
The pinout for the DB9 connector is listed in Table 7-13.
Input Adapter Panel for 3-Port Input Modules
Symmetricom offers three Input Adapter panels for use with 3-port Input modules.
Each panel has the following common features:
Accommodates up to three separate input signals
Switch-selected inputs allow for DE9 and another connector type
Switchable input termination impedance
Table 7-13. Pinout for the I-Port Input Adapter
Pin Description
3Sleeve
4Tip
7Sleeve
8
Ring
1
Note:
1
When connected to J1 on the rear panel, Pin 8 is Cs Fault.
9
Flt Return
2
2
Only when connected to J1 on the rear panel.
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