Sycamore DNX-11 - Connecting External Clocking

Connecting External Clocking SMC II Module Jumper Configuration
DOC-001-11001 (Rev. 006)
26 DNX Quick Install & Setup Guide
Connecting External Clocking
External Clocking can be supplied via two source connectors provided on the new SMC IIA rear
interface module to enable the DNX to receive clock inputs from specific external timing
sources. The SMC IIA rear interface module provides a composite clock connector that can be
connected to two 64kbps composite clock inputs, and a T1/E1 clock connector input which can
be connected to two T1 (1.544mbps) or E1 (2.048mbps) BITS clock inputs. Connections can
be made either directly to the terminal block or via a wire-wrapped connection using the sup-
plied terminal strip. See Figure 21 for connection details.
Note: These clock inputs must be selected as a primary, secondary, or tertiary source prior to
configuring the clocking mode or they will not be recognized.
Figure 21: SMC IIA Clock Input Connections.
For further details on clocking, please refer to the DNX-11/-4 Reference and User’s Guide or
DNX-88 Reference and User’s Guide.
Station Clk
CC
PSX
A1
A2
B1
B2
NC
NO
C
NO
NC
C
NO
NC
C
1
3
2
Alarm
T1/E1
C1
C2
D1
D2
Composite Clock
Inputs A & B
T1/E1 BITS Clock
Inputs C & D
Directly Wired Connection
Wire-Wrapped Connection
Terminal Strip (Supplied)
SMC IIA