CANOGA PERKINS 2340 High-Speed Universal Fiber Optic Modem - Manual (Page 25)

EdgeAccess® Universal Chassis System
3.6 L134, L135, L136, L137: T1 and E1
The L134, L135, L136, and L137 ELIMs are electrically compatible with T1 or E1 specifications.
Tables 6 and 7 show the connector pinouts.
 L134 supports T1 and transmits AMI or B8ZS code. The ELIM includes an RJ-48 connector; use
a 100 ohm twisted pair cable to connect to the local network equipment.
 L135 supports T1 and transmits AMI or B8ZS code. The ELIM includes a DA-15 connector; use
a 100 ohm twisted pair cable to connect to the local network equipment.
 L136 supports E1 and transmits AMI or HDB3 code. The ELIM includes an RJ-48 connector;
use a 120 ohm twisted pair cable to connect to the local network equipment.
 L137 supports E1 and transmits AMI or HDB3 code. The ELIM includes a DA-15 connector;
use a 120 ohm twisted pair cable to connect to the local network equipment.
These ELIMs include two LEDs, LOS and AIS. See Table 8.
Table 6. RJ-48 Pinout
Pin Direction
1, 2 Tx (Output)
4, 5 Rx (Input)
Table 7. DA-15 Pinout
Pin Direction
1, 9 Tx (Output)
3, 11 Rx (Input))
Table 8. T1 and E1 ELIM Status LEDs
LED Color Description
LOS Off Normal
Red Loss of received signal
AIS Off Normal
Amber Alarm; receiving all 1s
Model 2340 User Manual 3-7