Cisco 7600 Series User Manual

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Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-08
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
IPSec VPN SPA Overview
Note The 1000BASE-ZX SFP modules provide an optical power budget of 21.5 dB. You should measure your
cable plant with an optical loss test set to verify that the optical loss of the cable plant (including
connectors and splices) is less than or equal to 21.5 dB. The optical loss measurement must be performed
with a 1550-nm light source.
IPSec VPN SPA Overview
The following sections describe the IPSec VPN SPA:
• IPSec VPN SPA LEDs, page 3-58
IPSec VPN SPA LEDs
The IPSec VPN SPA has one LED, as shown in Figure 3-40.
Figure 3-40 IPSec VPN SPA Faceplate
The IPSec VPN SPA LED is described in Table 3-38.
2. A mode-conditioning patch cord is required.
When using the SFP-GE-L with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord between the SFP
module and the MMF cable on both the transmit and the receive ends of the link when link distances are greater than 984 ft (300
m).
We do not recommend using the SFP-GE-L and MMF with no patch cord for very short link distance (tens of meters). The result
could be an elevated bit error rate (BER).
3. Dispersion-shifted single-mode fiber-optic cable.
1 STATUS LED
SPA-IPSEC-2GVPN SERVICES SPA
STATUS
129498
1
Table 3-38 IPSec VPN SPA LED
LED Label Color State Meaning
STATUS Off Off SPA power is off.

Cisco 7600 Series Specifications

General

Brand	Cisco
Model	7600 Series
Category	Network Router
Language	English