Section 363-718-102
May 30, 1997
Revision 01
Page 4
PairGain Engineering - Plant Series
PG-Flex FCS-718
4. Backplane Connections
4.1
Section 4.2 provides connector pinouts located on the backplane for an Alarm or PGTC Interface
Unit, Line Unit, and Channel Unit connectors.
Section 4.3 provides connectors and termination points located on the backplane for:
CO battery and CO return (BATT_A-, BATT_B-, Battery Return)
frame ground
Local Area Network (LAN)
data
HDSL, test, composite clock, auxiliary power pairs, and external ACO switch wire-wrap posts
alarm or PGTC test interface
subscriber lines with .045 mm wire-wrap posts (P1, P2, P3, and P4)
4.2
Table 3 lists the FCS-718 List 2 connectors (Figure 1) and where each is described in
this practice.
Table 3. FCS-718 List 2 Card Connectors
Connector/Fuse
Go to
Table(s)
On page
Alarm Unit or PGTC Interface Unit
4
5
Line Unit Connectors (Systems 1 and 2)
5
6
Channel Unit Connectors (System 1)
6
7 thru 9
Channel Unit Connectors (System 2)
7
10 thru 12
Use the information in tables 4 through 7 for diagnostic and troubleshooting
procedures under the direction of an authorized PairGain technical support
representative. User terminations are not required on J1.
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