Color code 11C Color code 11C Qamar177 (TechnicalUser) (OP) 12 Oct 19 09:04 What is standard color coding for meridian SL1 XUT card ? RE: Color code 11C bdk76 (Vendor) 12 Oct 19 17:07 What is the part number? QPCnn or QPCnnn typicly for the SL1 switches, or NTnxnn (ie NT8D14) for the Meridian 1 switches. Typical layout for most single pair PE cards (Analog Line, Digital Line, CO Trunk, etc) wbl/bl unit 0 wor/or unit 1 wgr/gr unit 2 etc, etc rgr/gr unit 7 (end of 8 port cards) ybl/bl unit 15 (end of 16 port cards) All additional pairs are ground, unsused, data, etc see the appropriate NTP. Going off memory, as I last worked on an full SL1 in the early 90s, the rest were SL1 cabs left over after upgrading to an M1 Opt 61c.