Shelf; Model 1000 Front Access; Model 1100 Rear Access; Expansion Panel - Symmetricom EDGE CLOCK 1000 User Manual

Chapter 2 Engineering and Ordering Procedures

Shelf

Shelf
The TimeProvider is available in two configurations: Model 1000 Front Access and

Model 1100 Rear Access.

Model 1000 Front Access

The ETSI-style shelf (990-58001-01) complies with ETSI 300-119 shelf projections.
Each shelf accepts one IMC or IMC/TPIU and one or two IOCs; the shelf also
supports one Input module and from one to four Output modules. Each Output
module terminates eight output timing signals. Alarms terminate on wire-wrap or
DB-25 connectors, depending on the Input module used. The minimum
configuration is one IMC or IMC/TPIU and one IOC for non-protected operation.
Using two IOC modules provides protection in case one of the IOC modules fail.
See Table 2-5
Model 1100 Rear Access
The NEBS-style shelf (990-58101-01) accepts one IMC or IMC/TPIU and one or two
IOCs; the shelf also supports one Input module and from one to four Output
modules. Each Output module terminates eight output timing signals. Alarms
terminate on wire-wrap or DB-25 connectors, depending on the Input module used.
The minimum configuration is one IMC or IMC/TPIU and one IOC for non-protected
operation. Using two IOC modules provides protection in case one of the IOC
modules fail. See

Expansion Panel

The available Expansion Panel provides additional outputs from the main shelf. Like
the main shelf, it comes in two configurations: Model 1000 Front Access and Model
1100 Rear Access. The Expansion Panel supports up to 32 additional output
channels. Both panel kits contain rack mounting ears and extenders for 19-inch and
23-inch racks.

Front Access

The front-access Expansion Panel (part number 990-58002-01) provides an
additional 32 outputs, for a system total of 64 outputs. The ETSI-style Expansion
Panel supports up to four additional Output Modules with various connector types;
each Output Module provides up to eight output signals. See
numbers for Output modules.
46 TimeProvider User's Guide
for part numbers for front-access shelf systems.
Table 2-5 for part numbers for rear-access shelf systems.
Table 2-2 for part
097-58001-02 Revision G – April 2008