Polycom SpectraLink 1725-36028-001 - Manual (Page 27)

Telephone Interface Configuration
Four-wire digital demarc block (Connector A)
The four-wire digital interface requires two demarc blocks, one to
Connector A and one to Connector B on the SpectraLink 8000
Telephony Gateway. They should be wired as follows.
Line 1 TX
tip
ring
Line 2 TX
tip
ring
Line 3 TX
tip
ring
Line 4 TX
tip
ring
Line 5 TX
tip
ring
Line 6 TX
tip
ring
Line7 TX
tip
ring
Line 8 TX
tip
ring
Line 9 TX
tip
ring
tip
ring
tip
ring
tip
ring
Line 13 TX
tip
ring
Line 14 TX
tip
ring
Line 15 TX
tip
ring
Line 16 TX
tip
ring
25 PAIR MALE
CONNECTOR
CABLE TO
GATEWAY
CONNECTOR A
Telephone
Ports
Line 10 TX
Line 11 TX
Line 12 TX
Note:
TX denotes
data transmitted
from the telephone
system to the
Gateway
UNUSED
PAIRS
DO NOT
USE
Four-Wire Connector A
PN: 1725-36028-001_T.doc 27