3 - 3
2
5
3.3
Dial-Up Line 50-Pin Connector (CC48-21L)
These 50-pin RJ21 connectors are used on racks with an RJ21 Dial-up
Phone Line Interface Board. We provide this interface board to facilitate
RJ21 hook-up by your local telephone company.
TIPA1
2
6
1
RINGA1
TIPA9
2
6
1
RINGA9
TIPB1
2
7
2
RINGB1
TIPB9
2
7
2
RINGB9
TIPC1
2
8
3
RINGC1
TIPC9
2
8
3
RINGC9
TIPA2
2
9
4
RINGA2
TIPA10
2
9
4
RINGA10
TIPB2
3
0
5
RINGB2
TIPB10
3
0
5
RINGB10
TIPC2
3
1
6
RINGC2
TIPC10
3
1
6
RINGC10
TIPA3
3
2
7
RINGA3
TIPA11
3
2
7
RINGA11
TIPB3
3
3
8
RINGB3
TIPB11
3
3
8
RINGB11
TIPC3
3
4
9
RINGC3
TIPC11
3
4
9
RINGC11
TIPA4
3
5
1
0
RINGA4
TIPA12
3
5
1
0
RINGA12
TIPB4
3
6
1
1
RINGB4
TIPB12
3
6
1
1
RINGB12
TIPC4
3
7
1
2
RINGC4
TIPC12
3
7
1
2
RINGC12
TIPA5
3
8
1
3
RINGA5
TIPA13
3
8
1
3
RINGA13
TIPB5
3
9
1
4
RINGB5
TIPB13
3
9
1
4
RINGB13
TIPC5
4
0
1
5
RINGC5
TIPC13
4
0
1
5
RINGC13
TIPA6
4
1
1
6
RINGA6
TIPA14
4
1
1
6
RINGA14
TIPB6
4
2
1
7
RINGB6
TIPB14
4
2
1
7
RINGB14
TIPC6
4
3
1
8
RINGC6
TIPC14
4
3
1
8
RINGC14
TIPA7
4
4
1
9
RINGA7
TIPA15
4
4
1
9
RINGA15
TIPB7
4
5
2
0
RINGB7
TIPB15
4
5
2
0
RINGB15
TIPC7
4
6
2
1
RINGC7
TIPC15
4
6
2
1
RINGC15
TIPA8
4
7
2
2
RINGA8
TIPA16
4
7
2
2
RINGA16
TIPB8
4
8
2
3
RINGB8
TIPB16
4
8
2
3
RINGB16
TIPC8
4
9
2
4
RINGC8
TIPC16
4
9
2
4
RINGC16
50
25
50
25
50POS.-CHAMP-CONNECTOR
50POS.-CHAMP-CONNECTOR
J18
J17
2
Dial-Up
Slot 9-16
2 Wire Leased Line/
4 Wire Transmit Pair
Slot 9-16
1
4 Wire Receive Pair
Slot 9-16
3
4
2 Wire Leased Line/
4 Wire Transmit Pair
Slot 1-8
Dial-Up
Slot 1-8
5
6
4 Wire Receive Pair
Slot 1-8
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
• • • • • • •
These will be used for dial
back-up telephone lines in both
2 and 4-wire leased-line
operation.
Multi-Tech
designation
These numbers refer to the position of these connectors on the back panel of the
rack as shown in Figure 2-3.
Summary of Contents for CC4800
Page 1: ... MultiModemManager Model CC4800 Card Cage Hardware Manual ...
Page 8: ... Chapter 1 Introduction Description ...
Page 12: ... Chapter 2 Installation ...
Page 20: ... Chapter 3 Cable and Connector Descriptions ...
Page 26: ... Chapter 4 Service Warranty Tech Support ...
Page 29: ... Appendix ...