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Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-14
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
2-Port and 4-Port OC-48c/STM-16 POS SPA
Mate Interface Cables
The 2-Port and 4-Port OC-48c/STM-16 POS SPA supports two mate interface configurations:
•
Mate between two OC-192c SPAs in the same SIP
•
Mate between two OC-192c SPAs in adjacent SIPs
Two SPAs are connected using a 40–pin connector copper mate cable. The length of the cables allow
only two possible connection scenarios, next slot horizontal and same slot vertical. This assumes that the
chassis is mounted vertically. Figure 3-31 shows the mate cables used to connect the SPAs.
Figure 3-31
SPA Mate Cables
RX overload
OC-48 SR: –3 dBm
OC-48 IR-1: 0 dBm
OC-48 LR-2: –9 dBm
Maximum receiver power damage
OC-48 SR: +5 dBm
OC-48 IR-1: +5 dBm
OC-48 LR-2: +5 dBm
Table 3-18 OC-48 Specifications (continued)
Specification
Description
129198
1
2
1
Long length RPR mate cable for single port
RPR SPAs (CBL-RPR-OC192-L)
2
Short length RPR mate cable for single port
RPR SPAs (CAB-RPR-OC192-S)