Clear-Com HX System Frames - Manual (Page 131)

Figure 87 shows an example wiring scheme for serial programming an I-Series (I-Station) panel:
Figure 87: Example wiring scheme for I-Series (I-Station) serial programming
Figure 88 shows an alternative cabling scheme that does not require the use of the
RS-422 converter module:
Figure 88: Alternate example wiring scheme for I-Series (I-Station) serial programming
Note:
The cabling scheme shown supports I-Series panels. To use with an E-station simply reverse the TX
and RX connections at the Sub-D 9-pin F connector.
124 Eclipse HX Upgrade Guide