Issue 1
December 1997
10-1
10
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Technical Specifications
1
0
Overview
1
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This section contains the technical specifications for the DDM-2000 OC-12
Multiplexer.
DDM-2000 OC-12 Multiplexer
1
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External Transmission Interfaces
1
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The DDM-2000 OC-12 Multiplexer transmission interfaces adhere to industry
standards as listed in Table 10-1.
Table 10-1. Transmission Interface Standards
*
Registered trademark of American National Standards Institute.
Interface
Standard
Comments
DS3 low-speed
ANSI * T1.102-1993, TR-499 Iss. 5
VMR, VM, or clear channel
EC-1
ANSI T1.102-1993 & TR-253, Iss. 2
OC-3
ANSI T1.106/88, ANSI T1.105/91
TR-253, Iss. 2, TR-496, Iss. 3
OC-12
ANSI T1.106/88, ANSI T1.105/91
TR-253, Iss. 2, TR-496, Iss. 3