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Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
Chapter 2 Module and Service Descriptions
Frame Relay Service Modules
•
For the MGX-SCSI2-2HSSI back card, see
Figure 2-22 on page 2-43
.
•
For the MGX-FRSM-HS1/B front card, see
Figure 2-21 on page 2-42
.
•
For the multifunction MGX-12IN1-S4 back card, see
Figure 2-23 on page 2-44
. This back card
supports four V.35 or four X.21 ports.
LED Indicators
Table 2-8
and
Table 2-9
describe the FRSM T1/E1 LED faceplate indicators for both the FRSM-HS1/B
and the FRSM-HS2.
MGX-FRSM-HS1/B Cabling
The cable models come from the Cisco 12-in-1 series of cables. (See Table 2-10.) Each cable can have
a male or female connector at the far end. Also, the available clock sources depend on the mode. In DTE
mode, the clock source is either line or ST (ST is a wire in the cable). For DCE, the clock source is the
front card.
See
Table 2-11
for the relationship between cabling and modes and
Table 2-12
for part numbers.
Table 2-8
Card Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2
Type of LED
Color
Meaning
ACT LED
Green
Active
STBY LED
Yellow
Standby
FAIL LED
Red
Fail
Table 2-9
Line Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2
Type of LED
Color
Meaning
Individual Port LEDs
Green
Active and OK
Red
Active and Local Alarm
Yellow
Active and Remote Alarm
Table 2-10
12IN1-S4 Back Card Cable Types
Cable Type
X.21
V.35
DCE
X.21 DCE
V.35 DCE
DTE
X.21 DTE
V.35 DTE
Table 2-11
Cabling and Clock Sources for the MGX-FRSM-HS1/B
Mode
Type of Cable
Clock Source
Mode of Far End
DTE
DTE
line
DCE (male or female connector at far
end)