Cabletron Systems Cabletron CyberSWITCH CSX400 - Manual (Page 236)

EPIM Specifications
222 CSX400 and CSX400-DC User’s Guide
EPIM-A and EPIM-X (AUI Port)
The EPIM-A is a DB15 female connector used to attach segments to an external transceiver. The
EPIM-X is equipped with dual internal transceivers. It has a DB15 male connector used to attach
segments to an AUI cable.
Figure 82 shows both modules and Table 32 provides the DB15
pinouts.
Figure 82 The EPIM-A and EPIM-X
!
CAUTION
The EPIM-A is equipped with a fuse (F1) to protect against risk of fire. For continued
protection against the risk of fire, replace fuse F1only with the same type and rating of
fuse (1A, F250V).
Table 32 DB15 Pinouts
Pin Number Represents Pin Number Represents
1 Logic Ref. 10 Transmit -
2 Collision + 11 Logic Ref.
3 Transmit + 12 Receive -
4 Logic Ref. 13 Power (+12Vdc)
5 Receive + 14 Logic Ref.
6 Power Return 15 No Connection
7 No Connection Connector Shell Positive Ground
9 Collision -