L132: Eia-422, Twinax; L133: Ttl, Bnc; Table 4. Eia-422 Interface Twinax Signals; Table 5. Ttl/Bnc Signals - Canoga Perkins 2370 User Manual

DC-37 Pin EIA-449 Signal
18 TM
19 SG
20 RC
33 SQ
34 NS
37 SC
3.4

L132: EIA-422, TwinAx

The L132 ELIM is electrically compatible with the EIA-422A specifications. It uses five TwinAx
connectors. Table 4 lists the supported signals.

Table 4. EIA-422 Interface TwinAx Signals

Signal Name
RXD Receive Data
TXD Transmit Data
SCR Receive Clock
SCT Transmit Clock
SCTE External Transmit Clock
3.5

L133: TTL, BNC

The L133 ELIM includes five BNC connectors to connect to a DTE device that uses unbalanced TTL
signal levels; it supports only the clock and data. Use this ELIM for high speeds and long distances.
Table 5 lists the supported signals.

Table 5. TTL/BNC Signals

Signal Name
RXD Receive Data
TXD Transmit Data
SCR Receive Clock
SCT Transmit Clock
SCTE External Transmit Clock
3-6
Function
Test Mode
Signal Ground
Receive Common
Signal Quality
New Signal
Send Common
Direction
Out
In
Out
Out
In
Direction
Out
In
Out
Out
In
Model 2370 Model User Manual
Direction
Out
Control
Control